nice idea, cool lighting and colors. it could stand to be a bit sharper. for stuff like this (stop motion), you're gonna want to be close to 1/1000 to really nail it. with that much light, you could bump your iso without losing detail to noise.
The head and shoulders are stopped well. Some motion blur evident in the feet and hands. I like the way you've composed this and the shadows add an interesting dimension. Good luck.