Nonnie's Stack o' Pixels - Latest: Mega Man Project

[GrooveMan.exe]

Have a gander at the limbs and extremities of your fakemon. The tails and arms and tentacles. The lineart for them is often quite 'lumpy' in places, the curves not smooth. It makes them look thin and wobbly, like noodles. This is for the most part quite easy to fix.

Look at the Spriting Dictionaty stickied thread. That has an example on how to make your lines look cleaner.