Totally agree. I've always loved Rayman as a kid, and even now Rayman 3d is the first game I bought for my 3ds. So I'm already biased.
Aside from that though, this image is really great. Lines are clean, colors are vibrant, everyone is mucho intense. You gave the picture this "action-packed" feeling without anybody even moving, and that's nice. Just out of curiousity, what did you use to color? It looks like colored pencil and something else, but I could be totally wrong.
Anyway, great job. I love it. :]