I read about this girl before. My only question for this version of her,
is how on Earth does she get through a metal detector?

Hahaha, the answer is "poorly". It doesn't help that it's prolly carrying an actual weapon somewhere on its person too >.>
Usually, security has either detained Eren or asked it to leave before it even enters the facility, far before it can get to a checkpoint.

It is important for me to make Eren and Serenity very distinct. Truly, they both find happiness at the end of their individual paths, though they diverge greatly.
Eren's path is somehow more torturous, but "a smooth sea does not make a skilled mariner".
I am glad you like the result. Thank you again for being so nice to me. <3

I love how you do mice/rats. I wonder if there'd be much distinction if you did a mouse. Mine don't have much... Although I guess my rats are more... scraggly.

Digressing. Love the syringe tattoo. It really takes center stage here.

The syringe aspect of the tattoo was sort of an accident. ROTDA did the outfit you see in the upper right of the picture, and the lines underneath just happened to be such that I saw them as hypodermic needles (Rorschach test anyone?) so I went with it. It makes so much SENSE, in a few different related contexts.

I don't think I've ever drawn a proper mouse. I did a horrifying fanart of Gadget a few years ago that I'd prefer to not unearth.

Does it use any drugs or does it just like the syringe aesthetic?

Good question, thanks for asking it. It allows me to reveal a little more of Eren's character.
Short answer: No, it does not use real-world human drugs (I'm presuming you're not referring to caffeine: https://www.furaffinity.net/view/23554141/).

Medium answer: Since my characters are all ambassadors of ME, and I'm straightedge, they don't use human drugs. I use them to tell my story, and I have no experience with drugs, so it wouldn't be sincere storytelling to include that element.

Long answer: The above two answers plus these other elements: the syringes are more than an aesthetic thing. Eren works for Pestilence. As such, a syringe is one of the weapons in its arsenal to spread disease. This can be done actively, as in melee combat, or passively like setting biohazard traps for folks to step on/walk into (or maybe just set boxes of the things adrift at sea to pollute some beach somewhere XD).

All of my characters are more metaphor than literal. It's what allows them to do things like murder and torture other creatures without the typical human world reprisals. In my headcanon, Eren eats toxic garbage, and if it were to inject anything, it would be nerve agent or hydrazine or something acutely horrible and deadly. Eren doesn't seek pleasure or pain relief. Eren seeks pain, and pleasure relief.

Sometimes folks give me gift art that includes my characters doing non-canon things, like smoking. I never turn up my nose at gift art, and I reconcile the disparity in my mind this way: people see us differently than we see ourselves, and if people assign activities to us based on their perception of us, that's a learning moment about how our energies are received by others. Message sent doesn't always equal message received.

Ohhhh I think I see what you mean. An anti-nurse... haha. Kinda makes me wanna draw Eren in a gothic (masculine) nurse's outfit (featuring green/black aesthetic) with syringes filled with some kind of dingy green substances, to emulate what it is you just said in a kind of comical understanding of this. When I think of syringes, I usually think nurse/healers, but it's also fun to think the opposite, now that you put the image in my head.

I'm glad you said it's fun! Fun is really the most important element, to me ~

Scrubs was the outfit I was thinking of. Scrubs. Lmao