A running pose:
Looking really good,the helmet makes it look much safer. The triangles I’m guessing are guides to help the user put on the suit, which gives me another safety thought,this one for the people around him in this city setting. Perhaps you could add another set of triangles or arrows around the hip on both sides to act as turn signals.
Wow, after more than 5 hours of rendering of the background, I once again realize that my laptop (i7, radeon HD6000) is not really made for this 
@alewisde: I had thought about some turn signals as well. If I got some time left I will definitely add that. But there are some other artefacts which I absolutely need to fix first. And after that I will probably need about 5 hours again to render the entire character