Anatomy sketch

So, for the first time in three months, I sat down, and studied a little anatomy. This is just a work in progress, don't think I will finish it, but it's supposed to be a more realistic saphire. Eh, tried to draw a little of the skeleton. Anyways, if you see any spots that need work (ex. Bad leg placement) I would be really grateful of it. (Just don't be rude )
Thanks!~