#1.) I like the effects, but you made it look so flat. Add some colors or place a few curves in there, add some lighting? Just add something make it flare a little more. #2.) Good style I like it, it pops out a little more, but now the render doesn't really blend in with the BG. Also theres some gray on the right side that I'm not really liking. #3.) Much better than the first two, but I'd go back over the top left corner and make it look black instead of like a dark blue. Also maybe you made the render too bright. Great job on this one. I like it the most #4.) Well I can see you did a few things in the background and to his eye and I'm pretty sure you did a few things to the render. But for me its just to simple. I love the way the eye looks though. Great job on all of you tags just I noticed all of that. Hope I helped