Using Articuno's tail to fill out that weird contour was a good idea haha. Though the distinction between like-colored Pikachu + Charizard and Blastoise's shell + Moltres is a little fuzzy, the palette looks nice otherwise! Love the way the individual sprites are so full of character!

Love your little guys, please keep them coming! You're great at keeping things legible and not overdetailing, and your colors are really nicely balanced!