Soft early autumn photoshoot, with model wearing nihongami (traditional hairstyle) with a cute uchiwa-shaped hairpin.

And look, they also had that adorable miniature chôzubachi (washbasin found in temples/shrines or tea gardens) hairpin!

Mysterious aura for this lovely outfit featuring a delicate higanbana (spider lily) in blue tones by kanzashi artist Sakae, paired with a custom made higanbana yukata/kimono by Cotoco.

Higanbana are usually red flowers, especially link to the underworld and the dead. Seeing such a pattern in blues is lovely. It would be an amazing wear during the smothering summer, as since the Edo period, it is the perfect time for any spooky story (cold sweat fending of the heat).

Most beautiful Maiko cherry blossoms kanzashi hairpin by Kazurasei. I love how the silver blossoms add depth top the design, it must be so pretty gliterring in the light!

簪 Kanzashi (Japanese hairpins) and いち止 Ichidome (hairstops), handy charts by Edo lover Nadeshico Rin following the kushi/combs and kôgai/hairsticks ones.

Technically, kôgai (hairsticks, rod-like/single prong) were pratical hair accessories meant to hold mage (chignon), where kanzashi (hairpins, with 2 prongs) were used as decorations only.

Historically, two prongs hairpins differentiated from kôgai to circle around sumptuary laws* banning certain types/material for kôgai. (*I remember reading that kôgai could be used as weapons which probably weighted in the authorities’ decision to ban some kôgai types ^^;)

Nowadays in the West, word “kanzashi” often refers to “tsumami kanzashi” ie hairpins with silk flowers. But many types existed, many of which are now mostly seen worn in “traditional”/formal settings (tea ceremony, wedding, or by Geisha/Maiko for example).

As for hairpins types, you can see here from right to left, top to bottom (pins are more or less sorted chronologically):

Right column:

• 松葉簪 - matsuba kanzashi (pine needle hairpin) - straight forward name for this pin which looks like a big pine needle, it was popular during Meiwa and An’ei eras
  
• 紋入り簪 - mon iri kanzashi (crest hairpin) - popular during Meiwa/An’ei eras, this pin had a small crest carved between tab and prongs parts. Women could wear their family crest, but also their favourite Kabuki actors one’s for ex for historical fangirling ;)
  
• 輪形銀簪 - wagata gin kanzashi (ring shaped silver hairpin) - a simple yet refined pin which appeared around Shôtoku/Kyôhô eras. Apparently one of the first hairpins having two prongs + tab design
  
• 持出し簪 - mochidashi kanzashi (stick out pattern hairpin) - once again a popular Meiwa/An’ei eras pin, with carved flowery motifs sticking out
  
• 平打簪 - hirauchi kanzashi (flat crest hairpin) - another well known metal pin (still seen nowadays though crest part is often smaller) which appeared around Bunka/Bunsei eras. It has a flat tab shaped as crest, which can be stamped, carved or cut out
  
• 琴柱簪 - kotoji kanzashi (koto bridge hairpin) - the typical “Edo era” hairpin, popular since Kan’en/Hôreki eras. The elegant name is pretty straight forward as it does look like an elongated koto bridge

Left column:

• べつ甲花簪 - bekkô hana kanzashi (turtle shell flowers hairpin) - a striking style which appeared in Bunka era. It was first worn by (rich) young ladies for formal/celebratory events. It is now only worn by brides on their wedding day.
  
• べつ甲足つなぎ簪 - bekkô ashitsunagi kanzashi (turtle shell linked prongs hairpin) - a sturdy pin thanks to its connected ends, it first appeared during Bunka/Bunsei eras.
  
• 大耳簪 - ômimi kanzashi (big ear​ hairpin) - also appeared during Bunka/Bunsei eras, the telling name comes from its large tab.Edo people used the top part of hairpins (the ‘ear’/tab) to clean wax from their ears (using them much like ear pick/ear spoons) so this could explain the name of this pin - too big to be actually used for this purposed.
  
• 玉簪 - tama kanzashi (beaded hairpin) - a pin which appeared in Bunsei era and remained steadily popular through the ages and well into nowadays. The bead was usually made from sango/coral, but many variations existed (like jade for ex, but also cheaper materials like died horn, glass, celluloid etc).
  
• 房飾り付花簪 - fusakazari tsukihana kanzashi (tasseled flower hairpin) - a big pin with cute fluttering ornament worn by young girls from late Edo to Meiji era.
  
• 銀製花簪 - ginsei hana kanzashi (silver flower hairpin) - gorgeous flowery hairpin made from costly silver, popular from late Edo to Meiji era. Rin doesn’t say anything about it, but I don’t think this could have been anything but a special ornament for formal wear ^^
  
• びらびら簪 - birabira kanzashi (dangling hairpin) - a style well known by Maiko fans! Those fluttering metal pins were popular during late Edo and Meiji era, especially among “musume” (unmaried women, especially refering to fashionable city girls). The beads here are coral ones
  

Ichidome note - ichidome are small hairpins meant to hold (dome) into place the “tail” (ichi) part of some nihongami hairstyles:

• 笄タイプ - kôgai type also known 髷どめ wagedome (”chignon stop”) - those pins were used from late Edo to begining of Meiji. They were especially fashionable in Kyoto/Osaka, among girls who wore them with sakkô hairstyle (an hairdo now seen on maiko during their erikae)
• ピンタイプ - pin type - if kôgai types were used in Kansai, if I understand Rin currectly, Edo (Tokyo) fashionistas prefered to wear only one part of the kôgai pinned into their hair - which then lead to those small pins designs
  

Kikka ryoran (chrysanthemum galore) hana tsumami kanzashi hairpins by Akiko Miya, featuring a super cute kikkazuru (crane shaped from chrysanthemum leaves and petals), and the most impressive fiery flower inspired by tomoe nishiki (or Hokusai tomoe nishiki):

(pic from)

Joyful summer themed tsumami kanzashi hairpin full set* by Akiko Miya, depicting round fans/uchiwa with swimming kingyo/goldfishes, tonbo/dragonflies, sasa/bamboo, yanagi/willow, natsu giku/ summer mums, and kikyo/Chinese bellflower.

*Full kanzashi sets usually have a daikan (big front pin, worn on the left), maezashi (small front pin, worn on the right, often with bira/dangling strips), and a katsuyama (bridge style pin, worn on top of the head)

Super rare Obon themed antique kimono outfit, mixing both temporal and spiritual patterns.

The georgette (a light crepe fabric) hikizuri depicts a summer scenery of cute bats flying by a riverside under willow trees (a symbol of the hanamachi/geisha world). You can also see a kago (basket type palanquin) and a discarded kanzashi/hairpin under what seems like a sutra scroll.

Likewise, the uchiwa/round fan is set over a shakujô/Buddhist monk staff. The fan calligraphy looks like 祭 matsuri/festival to me (correct me if I am wrong, I am so bad at reading calligraphy >.<).

The hanpainted obi scene is a very unusual motif as it shows a tôrô nagashi, a ceremony held on the last evening of the Obon festival where paper lanterns (chôchin - tôrô is another word which designates lanterns but today mainly used for garden or hanging ones) are sent to float down a river. It’s believed their light will guide spirits of the dead back to the other world.

This outfit is so unusual and hightly seasonal, that it was probably ordered by a very fashionable Geisha. I love that OP chose to wear this venerable lady houmongi style (antique are more than often super small).

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Huge tsumami kanzashi (silk flowers hairpins) by Nekoyama mezashi. I especially like those big and luscious chrysanthemums!