zappa/blastamechakoopas

So I'm trying to get the Zappa/Blasta Mechakoopas' NSMBU sprites transparent in good quality, but his transparency edits are so sloppy (Sloppy Blasta/Zappa Mechakoopas), you guys would condemn these kind of images. On top of that, he suggests that sprites be recolored to make them, which is...