This picture is quite impressive for sure, even the colors are harmonising each other well. But I think that the ground is a little bit blurry with less structure. The convertion of a 2D into a 3D perspective is hard for sure, but the hole that the one lemming is digging looks more like a fosse than a tunnel in my eyes. Maybe the image looks a little bit too saturated and the concrast can be a little bit stronger. Nethertheless it's still a pretty picture and the lighting is beautifull too. I'm afraid that I can't paint such a picture half as good as you've done it. ^^'
Okay, now, I hardly ever find any Lemmings fan art impressive since I've been a big fan of the game since I was 9 or so and now I am 22, I guess I'm expecting a lot and usually fan art just doesn't catch the feeling of the original game. However this one does and goes beyond! I just adore this piece, every detail on it, the lights and the dark shadows. The contrast between the innocent, helpless little lemmings and the ominous athmosphere gives me the chills. If you don't mind I'm gonna use this as my PC wallpaper. Just awesome picture!!