I agree with Paras, that you should develop the paratrooper concept. Maybe give a kind of combat specialist army look.
Nastyjungle, as if I don't gush over your work in your own thread enough! Your design is my favorite so far. It's fresh, it's fun, I like the colour scheme and its proportions, and I think this would be true even without your strong linework and colouring.
Tortferngater, I like pterodactyls and would like to see you take another stab at this concept it possible. First, I'd stay away from the straight line tool, as shaky fallible human lines are a lot more appealing than the cold perfection a computer provides. Perhaps separate the musculature of the forearms from the wings and elongate the body a little, a looks a little squished.
SIHYLSentret, your panda has a really calm, wistful look about it, which I really enjoy, and which I think matches what may be our stat spread really well. The clouds as a means with which it gets lift is a nice touch, so I don't know if giving it a traditional 'bird' pose in flight is the best direction to go with it. Perhaps if it could fly with cloud swirls carrying it while erect or in a sitting position?