It looks quite good but you need to get rid of the double pixels. Some double pixels are okay but not all around him. The head of Pencilman is way too much different compaired with his alter ego and the noses are different too.
Here's a paintover I done:

What I did was that I got rid all the double pixles and used the alter ego's head on the Pencilman body but I changed the head shape so it matches with your descreption of him. Most superheroes and their alter-egos are quite similiar to each other so that you can recognize the who the super hero/alter ego atcually are. If you for example look at Mr. Incredible from The Incredibles and then look at Bob Parr you can see that those two are the same person even if they wears the supersuit and eyemask. The same goes with Superman/Clark Kent and Batman/Bruce Wayne.
Here's a paintover I done:

What I did was that I got rid all the double pixles and used the alter ego's head on the Pencilman body but I changed the head shape so it matches with your descreption of him. Most superheroes and their alter-egos are quite similiar to each other so that you can recognize the who the super hero/alter ego atcually are. If you for example look at Mr. Incredible from The Incredibles and then look at Bob Parr you can see that those two are the same person even if they wears the supersuit and eyemask. The same goes with Superman/Clark Kent and Batman/Bruce Wayne.