I like the use of neon color on this -- very unique for a game -- though I don't know how 'complete' you're calling this. Might help to know that before I go into a detailed crit.
The few things I can see off the bat is that it's hard to get any true sense of scale. The height of the buildings and the size of the car and puddle don't seem to go with the scale of the buildings at all.
Additionally the puddle is isolated in the road, and the road is way too empty -- no details to break up the empty space like cracks in the road / potholes / trash / yellow-lines / whatever really make this puddle stand out as something of importance (which I doubt is the case) visually.
Also, if this is a wet scene (after a good rain or something), you really should emphasize that with a slippery look on the car and perhaps even more reflections toward the bottom of the road from the buildings on the other side of the road (if there are any -- if not, there should be *something* there at least, whether that's bushes/grass/sidewalk/whatever). If you want a thoroughly soaked scene, you might want to remove the puddle completely and only put light ripples here and there in places where water could be assumed to be pooled (and replace the puddle with a manhole cover). The puddle tends to give an impression of standing water (i.e. the day after the rain) which would negate the cool shines on the ground from the windows since most of that would have been dried up by then.
Lastly, the yellow on the roof of the car fights with the intensity of the lights on the city buildings, so I suggest darkening it or toning it down a lot until it no longer fights with those neon colors.
Atm, that's all I can really offer right now.