If Rainbow Brite were a boy...
Even through your obvious effort, I find myself not enjoying this. The animation as a whole was just flat out sloppy. The art was definitely something that needed work on. Here's a big tip for you: DON'T DO FRAME-BY-FRAME USING ONLY THE LINE TOOL! Really, if you're gonna do FBF animation, just use the brush. Turn up your smoothness and go at it.
I'm going to give you a 4 ONLY because I wanna raise the score for you.