Thanks, thats is really helpful!

I don't know if this will help you, but my avatar has some WIPs in the description that show how I did a spin effect. If you start by animating the shoes and hands in a circular loop, then adding the arms, legs, and torso, it helps keep it looking 3-dimensional.

I like your design and the head animation looks really good, but the scarf and torso flip more than rotate. Good luck with the next one, spin loops are some of the hardest animations to do. =)

 Yeah was having trouble showing legs changing so I had to really changing the size shading whish doesn't always work to well. Thanks for the comment. Next time ,I'll something different to emfasize it more. :)

all is nice.  but the legs doesn't match.
so you need to check that spin. the legs are all the time in the same position, or that looks like.