Also, thank you (again) for the replies! To be honest, I wasn’t too sure about adding aesthetic options, but I like the ideas that have been thrown out a lot and I’m going to do my best to incorporate them in. Perhaps certain physical characteristics could help the player disguise themselves as another character, or even, like others have said, small changes to the story, like scars being received or limbs or long hair being lost in particularly grueling battles.
One thing I’ve intended to add from the start is tattoos, though. I’m obsessed with tattoos in general, and in the (still pretty crude) system of magic I was thinking of, tattoos could be used as power-enhancing bits of magic or summoning seals-- or you can just get them for decoration, if you like! So they will definitely be an important part of the game.
As for the discussion of gender and sexuality options in CoGs, I agree that adding the option for non-binary identities are an important part of immersion, which of course is the point of any interactive fiction. One of the things that drew me to CoG is the inclusiveness of its games; in a video game culture dominated by heterosexual cisgender macho man archetypes, it’s nice to get to play as a gender and/or sexual minority, and to customize whichever character I’m playing to a comfortable degree, instead of being railroaded into a certain character type.
Despite identifying as LGBT, however, I’m admittedly still uneducated on a lot of topics concerning gender identity, and my biggest concern is adding these to the story without accidentally offending anyone. (My second biggest concern is making sure the coding is consistently grammatically correct, so other characters don’t refer to you with “They is standing over there”.)
Whew! Sorry for the long post, but I tried to address as much of the thread as possible. Also, on an unrelated note: I’m currently dorking out over Monster High, @Sashira; can’t wait to see where you go with it!
tl;dr: Thank you all for replying, and hooray for game inclusiveness!