User blog comment:Dragonsblood23/I do the Background/@comment-9623756-20140717205124/@comment-5264252-20140717210838

Pretty much this. You don't see a Mewtwo just wandering around anywhere, and Jigglypuffs aren't found in forests. :P They should also be smaller and further in the back, not so up close that it looks like they'd be cameos or rappers. Look at all the other animals featured in backgrounds throughout ERB.