First thing I have to say...
WAY TOO SHARP BRO
Anyway the lighting looks pretty good and has the right idea but is just a bit too strong
Depth could use some tuning as well as atmosphere
Colours are decent but maybe a bit more experimenting with gradient maps and you adjustment layers.
Pretty sure it's white soft brushing I'm looking at but if it's not get rid of it anyway :P Near the top of Mario's head. Yeah don't do that haha not very realistic and makes the colours look washed out a bit. It's either white or the orange got too bright :S