the first one V2 is pretty sharp its a cool idea and i can see it looking amazing its really dark and sharp those are the only problems i can see right now the 3rd one is really cool keep up the good work
lol weren't you on ao? Contrast, messiness and sharpening issues here, work on those. 2nd is interesting though =P
work on your colors. #3 seem like you were coloring it and then changed your mind half way. #2 colors clash too much. and #1.. well its b/w so it doesn't really matter
actually no. 3 was supposed to be b/w but decided to smudge in a c4d just to give it a bit of action. thanks for the comment though. appreciate it!