Just a quick doodle I did in storyboarding class yesterday.
I work so rough & rarely do any cleanup traditionally nowadays. Instead, I always scan it and work in Photoshop.
Then with a quick cleanup in Photoshop & some colours;
This is a character design I have had since I was 15 years old. He's changed very little over the years. He's been given a few different names, but Squelette always has fitted best.