This was a pretty unique attempt on your part. I think the best part about it is how everything has a pretty distinct design. I appreciate all the different colors used. While you could have down some more with shading, it's still nice to look at. They somewhat have similar faces, but different designs. I think that's creative.
I don't know what that yellow guy at the bottom is doing. This picture itself is pretty non-sequitor enough for me to not really care about it. There are a couple of nice shades in the background. I especially like the pointed shapes. Not sure what that mishmash of bubbles is.