Star thinks he's so sneaky editing the first post all the time 
The Bowser fix turned out great, anyhow.
EDIT: Little nitpicks but, you should remove the dark green pixel on the lower half in between Yoshi's pupils. Bowser's upper "fangs" should be 2 pixels tall so he looks less, hippopotamus-y. And Luigi has a darker shade on the lower part of his nose that makes it look flat from a far, unlike Mario who uses the 2nd shade of skin for the bottom of his nose instead (most likely just a mistake).
The Bowser fix turned out great, anyhow.
EDIT: Little nitpicks but, you should remove the dark green pixel on the lower half in between Yoshi's pupils. Bowser's upper "fangs" should be 2 pixels tall so he looks less, hippopotamus-y. And Luigi has a darker shade on the lower part of his nose that makes it look flat from a far, unlike Mario who uses the 2nd shade of skin for the bottom of his nose instead (most likely just a mistake).