Call me odd; but I've always sort of had a soft spot for the antagonist of the Mario universe... I mean come on: his evil plan from the last game was gathering supplies for his fairy-tale wedding; that's bloody adorable.... and if Super Paper Mario is to be believed; if he ever succeeded at that the universe itself would tear a new asshole to prevent it. Sisyphusis looking at Bowser and going "Geez guy; at least I'm not in love with the boulder."
Seems the Koopa King has some new recruits; whether willingly or by some magical schenanigans; my sharks Amber and Mako have gotten the Koopaling treatment. Seems Amber's opted for front-line-fighter with that firey sword of hers and Mako's gone with commanding one of the kingdom's airships.
Based their poses/proportions on stock images of Roy and Iggy respectively. Also went with a stab at the more Japanese-esque Koopa Kingdom look from Mario Odyssey as I really rather like it; makes them have a neat flavor of their own besides "generic evil".