Nice, you're improving really well. Da-Legend is correct the way the background colors match mario's clothes is a good way to have the render to blend with the background. I don't really see anything else you could do to this sig :p.
4/5, I'm not to kean on the colors, but, im not saying the colors are a bad choice. I just dont like the colors that much.
Guess I have different tastes then evryone here. To me the background is what sets it off for me (in a bad way). It looks to rough to me and not clean at all. IMO your render has a nice flow to it and putting it on that bg you ruined it. Sorry but 2.5/5
I haven't actually ruined anything. So If you want to cause trouble for no reason. Do it somewhere else. I know you don't mean it but the bg colors are from the render. So it is ment to be like that. I know I asked for you to critisize it (can't spell that) but it is ment to be like that.
Thanks anyway