Looks great!
But the size is a bit big.
I've had a crack at this animation.
Having 3-5 loops into 1 gif adds frames and thus size.
This gif is 7 frames.
I used Jasc Animationshop to cut away the excess loops and used their optimizer.
Saved 91% on space O_O

you did i nice job!
this is one of the first experiments that is why is so big XD

but i don't like it when the colors get dusty :/ this is another try