Caricature Drawing - Digital Art

I am still trying to improve in my caricature drawings which I started of recent. This is another of my friend which tried to depict in a comic manner.

I have noticed a couple of improvements though my confidence level is still low. Growth is part of the process and I hope to get better in my up coming ones.

Here, his nose and mouth were my focal points. I made them to look bigger while reducing the upper part of his head. This allowed his go beyond his face. I also increased his ears while giving him a long neck.
What do you think?

The sketch was done with an AutoDesk sketchbook application and aided with an S-pen. Below are my steps:

Thank you.