That looks amazing!
I love the style.
Hmm, his head looks weird on a few frames though.
I was thinking about the 2nd, 3rd 4th and 5th, from left to right.
His head always looks different, except on the last two where it looks the same.
On the 3rd frame the head just looks small.
Other than that, good job! This is progressing very well until now, keep it up!