Hehe, i drew them all myself.
If you people remember the muscle-skull thingie i did? I used that body all over again and modified it alot.
I like drawing something like, 100% hand-drawn, then modify the crap out of it XD When it comes to presets, of course.
It's time-saving, useful and looks really good.
It also keeps my presets connected and don't have a different muscle in a different place or something, it'd look weird.