Help me figure out what's wrong?

Can you guys help me out figuring out what's wrong with this drawing?
I feel like there is something off about the man on the right, but I've been looking for the past two days and can't figure it out.
There is no reference for this drawing.



Thank you for any input.

Hi Tanner.
The biggest problem is that your proportions are off for a basic human head.
The guy on the right would look more like this if his proportions were closer to average.

Here's one person's guide to proportions of the human head.

and here is his webpage:
http://ameralart.com/eHandoutsVisuals.html

Here is another artist's video for drawing proportions:
http://www.youtube.com/watch?v=jPjADiBTAIg

Thanks, Tom.

Here it is nearly completed. I still have a few things I'm not happy with, but it looks better than the original.


As always any critiques are welcome.

Why don't you try to draw what your eyes can see instead of what your eyes cannot?

Most people have problems drawing what is in front of their eyes, and surely they'll have problems drawing what is in their heads.