\o/ woo! good work!
You posted this in crit so: I think the stones could benefit by looking like they were held in place through magnetism. When he shoves them, I feel like they should have an elastic pull before snapping back. Like he shot them out, and they are trying to escape his orbit, but the magnetic field is too strong, and they relent. Easing into their position doesn't sell the magnet gut-feeling as well.
Do you want your forum name changed?