Squirtle is spot-on, Pikachu's overlooking his green-team attire hangin' on his tail, Jigglypuff's appropriate, Ivysaur seems to not be displeased, and Lucario and Charizard are in deep shame and embarassment respectively.
Should this be tagged Brawl? After all, this has the Pokemon trainer and all the playable Pokemon in SSBB. Also, I'm pretty sure that only Ivysaur was a female in Brawl, so it looks entirely too appropriate. As for Lucario and Charizard... who knows what that Trainer was thinking.