Oh WOW! This is just amazing! It's got pretty much everything I like in it: my favorite color is green, I really like girls with short haircuts like that and that shirt is just too cool for words.
I like how her body isn't really exaggerated or anything to shoot for sex appeal, because that's really not necessary to a girl very attractive.
I've looked through a lot of your other work and they're all very well done (my second favorite is the "Suspenders"; I'm sure you can guess why ). It really seems like you do art to make yourself happy first and then other people liking it is just positive side effect (sometimes I feel I've lost sight of that, and I only make art while thinking of what other people are going to say about it).
Anyway, that's enough rambling from me, keep up the great work, Tobiee!