Anatomy / Pose studies

I have trouble with odd bendy poses, so I did some practice today. The top right was the most difficult for me. 

Stocks Used:

http://photostockmarket.deviantart.com/

http://jagged-eye.deviantart.com/ (both images on left)

EDIT: I cannot figure out why it's doing a strange 'light' effect on the image. It only appears when posting here. :( Not sure why.