Now for this one. I like the understanding of perspective here, particularly the Jumpluffs. Though I think it should blur out the colors I do like how they are getting less detailed as they move back giving a sense of placement. The ocean does kind of lack the perspective though. I think you should try to find a way to make waves other then some lines and show that they are getting closer, as of now, there just is little perspective in that matter. The Background also does look a bit empty, I say work on the foreground first, then start drawing your Pokemon. I'm not sure of your process but a common mistake (that I use to make as well) is that people think you have to place background into the characters when it's actually place the characters into the background. You also have to realize that all the characters should be facing in a certain way to make some sort of interaction. Facing away from the canvas is a no no and will probably effect the overall impact in a bad way. You should also take into consideration that bubbles kind of reflect both light and refract certain objects, almost like little magnifying tools. Those are some things as far as my knowledge of Backgrounds go, I hope it helps out a bit.