Great tiles, but why does the water has a line going through it?
Like x-death said, the background can be improved indeed. I'm not sure what I can say about the colours. They seem to work, sure, but they could be improved. Everything does look awfully gloomy, especially for Mario. The tiles are lovely.
i can't believe i'm the only one who has faved this piece. the tiles on this are amazing. the piece is totally mind blowing!
the background could have been better. but considering how good of job you did on everything else that is forgivable.
I would have darkened mario's outline, he blends into the background more than the goomba or the pears, and hes the main character! Other than that I love the color choices, good work pixelling the goomba and mario, you have a nice style going on, the foreground tiles are gorgeous. Not keen on the bg either, looks out of sync stylistically and more quickly done than the rest, still can't put a dent on how lovely the tiles are though! <3