Poor Luigi doesn't even get a clear view of his face...

Why's there a Yoshi tag? He isn't anywhere in here.

I see Hooktail (or maybe Gloomtail?)

Yoshi is straight down under Luigi's visible foot, in the orange-hued row of characters.

Added all the Star Spirits and partners and Pixls (artist forgot Ms Meowz!) as well as bosses (artist also didnt include Tutankoopa or Magnus von Grapple and the Shadow Queen annnd Grodus as well as any Super Paper Mario bosses except Mimi and Count Bleck). I know too much about the Paper Mario series...