Kind of everything. XD I'm still not near slender enough for any of the characters I already cosplay, but I do it anyway.
Right now my focus is Chane Laforet from Baccano! Not that her outfit shows much skin, but still. My upper arms are one of my least-fit areas.
And in the future I really really want to cosplay Albel Nox from Star Ocean: Til the End of Time.
I probably won't work hard enough to get a firm stomach like that, but lean at least...yes.