Sketch Dump: Arms by ~Bambs79 on deviantART https://www.facebook.com/CharacterDesignReferences
Thigh Construction Tutorial by N3M0S1S on deviantART http://n3m0s1s.deviantart.com/ - Follow the link http://n3m0s1s.deviantart.com/art/Thigh-Construction-Tutorial-440946818
DeviantARTist jinx-star's guide to drawing the serratus anterior muscles.
PS, Gimp shading tutorial by ~Kiwi-RGB on deviantART join us http://pinterest.com/koztar/
Muscles-dragon-layout by Onikaizer on DeviantArt
Animal Anatomy - Cats Part 1 by *akeli on deviantART
Shoulder Girdle continued... by N3M0S1S on deviantART (http://n3m0s1s.deviantart.com/art/Shoulder-Girdle-continued-444801481)
Muscle anatomy - smooth out the lines and elongate the form and you literally have the perfect supermodel leg! Any type of humanoid leg you wish to draw is contained within this image.
How to draw a male upper body part
pinterest.com/character design and learn how to draw: legs