Commentary:

Green must have been standing around for quite a while. It’s a good thing Purple has such a large face, because it’s difficult to show expressions using body language when all he has are two feet that are difficult to pose. Purple is one of the two people who has a mouth that is a different color on the inside than the rest of him. The other being Lime, who shares a similar body shape and size with Purple. Maybe it has something to do with being very large. Or it may just be that this was before I decided on that rule.