It's really creepy the way it's always looking at you.

This is some awesome piece of work. It really gives that 3D feeling and I like the blend of human/crow. He would look good in a business suit.

 While I do like how fluent the rotation is, the lineart and shading are both some things that need serious improvements.

And as Smilecythe stated, at one point it does appear to turn a bit more quickly.

Anyhow, keep it up. Your animation is great so far, but the structure and shading is something you may want to work on...or at least consider for the next time.

I think you executed the ear flip well, it just doesn't fit in the idea in my opinion.

Not to mention, it doesn't look like it was intentional. Description should atleast say "it rotates and flips ears".

The funny thing is, I wanted the ears to flip (you'll notice they both do, not just the left one) BECAUSE the head turned faster.

guess my execution isn't good enough to show that. :/

 Very dynamic and smooth. However I would put few inbetween frames to the occiput side of the animation, it turns faster there as it is now.

Edit:

Also, try fixing the weird flip it's left ear makes.