some

http://i40.photobucket.com/albums/e2...w/envycopy.png
http://i40.photobucket.com/albums/e2...ew/c4dcopy.png
http://i40.photobucket.com/albums/e2...cenesscopy.png
http://i40.photobucket.com/albums/e2...marnixcopy.png

I like your style, but some of them seem a little over sharpened.

middle two are dope.. i think the second would look better without that pale yellowy bit.

All of them look excellent but I love the colors in the third some great stuff man.

I love the third. all of em r cool. mayeb with the first, you could darken the dark areas, the overlay or photofilter over top of it is a little too strong. Also with third, do some more the involve the render with bg, it seems a little bit unfinished. thats some pretty dope stuff tho.

love em all! third is the best i thinks..... in the second wat my bro sed the pale bit just seems out of place so if you changed it to like a red or sumthing it twould be noiiice!

overall i like them all :)
they look very clean ;)
good work