hulk really looks mean here and yet daredevil really lives up to his man without fear tag. You have really captured the characters very well indeed, and at the same time given it your own twist. Love the big horns and grey touches on DDs uniform. I think you got the lighting just right, it does add a whole extra depth to the image and the deeper shading on DD (than in your older version) as a result makes hulk seem more massive and threatening.
hmm. I think perhaps have a thought about a background/setting for the meeting of these two characters - a rooftop perhaps (you know typical new york - walls, water towers, skyscrapers etc etc) thus the moonlight would explain the lighting. It doesnt need to be hyperdetailed, in fact it is probably better just to give the impression of the setting so that everyone continues to focus on the characters.