Animated an illustration

Hi, 

I recently came across Malika Favre's amazing illustrations and decided to do a small animation from one of them. The color scheme although not natural, is the most attractive element. I animated it in After Effects.

https://vimeo.com/282111824

I would appreciate any inputs for improvements!!

Here are a few of my personal pointers:-

1. I tried hard to apply stretch on the ball and add motion blur, but since the yellow and blue combination is too contrasting, it seemed like a wierd ball flying around. 

2. Hence, I opted for the better looking version. 

Thanks in advance. 
Regards
Agni