I like hearing the little details behind your characters, but more specifically I like the Doylian reasons why you, the writer, chose to make it so. As a reminder, remember to shoot an ask to the blog you're RBing from.
does your muse engage in any specific form of exercise? what draws them to that, or drives them away from others?
what kind of music does your character listen to, if any? When did they get attached, and is it important to them? Is it something they discovered on their own?
does your character pick up new skills easily? specific skills better than others? Is there a reason they've gotten good at studying, or if they're a natural, how do others react to them?
does your character engage in unhealthy habits? Are they measured about it? Do they do it for social reasons or to cope? Are they even considering stopping?
does your character care about proper grammar? to what extent? does this reflect on their overall pedantry, or do they just want to communicate clearly?
To what extent does your character wash up? do they bother with a full beauty routine? do they see it as a matter of course, focused effort, relaxation? what do they consider grooming, and what do they consider hygiene?
does your character have a culture they're attached to? does their connection or lack thereof mean anything grander?
why does your character approach conflict the way they do? are they mean on purpose? do they even have it in them to be mean?
might make a sequel if I get bored.