Pretty Sammy, 1 layer, AVE, Opening Cel, no sketches, no background, GAME
Sasami, the little sister of Ayeka in the Tenchi world of anime, eventually had her own spinoffs. In them, she becomes a Magical girl who goes by Pretty Sammy. A Pretty Sammy OVA, a Pretty Sammy TV series, and Pretty Sammy games were created. They were meant to be a humorous take on other magical girl series like Sailor Moon.
Here is a link to the game opening to the song My Favorite Boy.
This a still from the opening as close as I could get to my cel.
Vapalla's Cels 