Hey, man. First of all let me say that you've come a long way since your first posts on PJ. Your proportions and anatomy are both getting better. There's still work to be done for sure, but you're showing improvement here, so I think you're on your way. The foreshortening on Superman's left arm is awesome! No way could you pull that off when you first started posting here. I'd say you're definitely making some huge strides, and I hope you keep it up.
You need to work on drawing legs more. Superman's right thigh in particular looks odd.
I know it's sometimes a struggle to get people to reply to posts, but don't let that get you down, and don't take that personally. People just sometimes get busy, and posts get buried.
Keep up the good work.