I have not idea what an intregal is but a couple of things:
have you established a center of gravity?--looks like you have.
I like the shakiness of the drawing
I especially like the costume and the pork pie hat--looks Irish of sorts
I like the cane
I would establish some sort of pull to the earth--some gravity--ad some shadow on the ground.
I was going to say work on the proportions but you know what--don't do that --it is perfect the way it is--your drawing conveys great depth of character-something that is lacking in a lot of more technically stable drawing--I know I am not there yet both technically and in conveying personality