More ideas from Martin
無題 | のらくら [pixiv]

pixiv is an illustration community service where you can post and enjoy creative work. A large variety of work is uploaded, and user-organized contests are frequently held as well.

Wed 4: Torso Practice n' Tips by ~genekelly on deviantART via Human Anatomy Artist Reference:

WARNING: OLD ART! The art and comments in this Deviation may no longer represent the artist's current views or interests. Homework for LASALLE College of the Arts: Human arm anatomy, now colour-co.