2D Animation Model Sheet "Tripping Tim"

This is the model sheet for the 2D animation class that I am taking. The character was for a story that was given to us and we had to create a character and model sheet. There was nothing about the size of the character. The only thing that were were told is that Tim is 20-30 years old and wears glasses. I created 3 different concepts and this one I think was the best of the 3.

This was the first concept that I had for Tim, he looks a bit too old in this version.

Here was my second concept a bit younger looking than the first concept but needed to push the character more.