the c4d or whatever it is looks awful... what did you stroke it?!?! bad choice. The stock is juut floating over a city?, the lighting is off, theres minimal effects going on, its far too boring.
Take the stroke off the C4D, fix the lighting too. And the contrast seems mismatched, like the city is low contrast, while the dude is high contrasty. There's also a white line on the dude. Try blending him more and making it seem more real. Right now it seems like you rendered and pasted, and that's all. It has potential, just needs some fixing up. Depth, lighting, contrast.
There is no focal point. Like Eternal Light said, try to create a nice Lightning / Effects. May add a spot/omni light to improve it. And please take out the stroke of the C4D and it will get good.
not really into this one as much.....almost too creative....as if you had a lot of ideas and tried to integrate all of them...Having trouble resting my eye on it....I suggest going over it again....first defining what your focal is....
