You sir, are probably best asking a moderator to move this to the sketchbook section, or just repost in a sketchbook. Your dedication to what you're doing is really commendable, and the Frazetta stuff doesn't hit too far from home.
I read your whole first page and then quickly breezed through the others and when you mentioned you need work on anatomy I have to agree. The thing about it is it's all there and your connections are decent in your highly muscled figures, but it just WON'T fit over a skeleton. If you would feel so inclined to draw the figure from the skeleton up and really take a lot of time to note the connections of the important muscle groups I think it would help you a great deal in correction some of the things that appear odd in the anatomy. REALLy spend the time, I say.
Keep posting more. I generally don't look at threads with this many hits because I figure you're getting help already, but I'll make it a point to stop by here now that I know what it's about.
Keep us posted.