Sidewinder gets my vote. The background may have been a bit "dull" but the stock render had good enough lighting and the background itself was quite nice and flowed well with the render. Burningsun, you overkilled the light/dark contrasting in my opinion with that much negative space with such a strong bright spot. Dream, that... diagonal bar or whatever that covers most of the tag on the left killed the tag for me.
Sidewinder gmv, and as Im the deciding vote Ill go in depth with my thoughts on them all. Burning Sun: Nice use of the c4ds, the flow looks good and the color is nice. I just don't like the feel of the desaturated section (a little too wide IMO). Also the left side feels a little bit empty, and could use just a touch more. Overall good job though. Dream: Good coloring, matches the background pretty well. Unfortunately I dont like the background very much, and feel the render just takes up a little bit too much of your piece. I'd also suggest you work on blending the render a little bit. Pretty good entry though. Sidewinder: I picked yours because I feel that the render flows very well with your background, and especially becasue of the effects. It almost looks like a 'web' that he's crawling through, and I thought that was very appropriate for this piece. Overall good job guys, and keep up the good work guys ^_^