I've got a new character that happens to be a doctor. How'd I do?
Critique the quack!
She's great. IDK why but I don't think pastries is the best favorite food for her…maybe something like fish or rice? She seems as if she would like Asian food. She also seems like a kind-of mentor figure….maybe if she was more open (just a little tiny bit) she would make a great mentor figure. How old is she, by the way? I think I missed that.
She's 31. I imagine that she is in a city that is basically a colony, down in the desert. She spends most of her time in the hospital or at her home, so that's why she's paler than everyone else. I imagine that she is the more logical of the trio, mostly because of the fact that she spends her workday operating or being a general doctor. Compare that to Yama and Aqua, far more likely to use their heads to ram rather than think, and she would be a good foil for them. That could help with the mentor image that you've got.
As for pastries, seeing as she's in a colony filled with people used to the comforts of home, I assume that pastries like eclairs, cannolis, cakes, and such would be the dessert of choice for those still beating the sand out of their shoes.
Now those pastries make sense! :)
And yeah, as long as she's somewhat older than the others, and actually mentors, then she's great. maybe she should have a bit more background, if she's an important character then maybe you should get into that more. Other than that, she's golden.