Sorry for the late response, but yeah. I'd just like to share some creator notes.
The Rimu trio's designs were based on the characters they possessed.
Drawing 4 (if you can't already gather who it is) had their design based slightly on The Scourge from The Binding of Isaac: Repentance.
I'm very proud of the lighting effect in drawing 4's top left corner.
The black spot in Drawing 4's "mouth" is a second mouth, one that moves more like a normal mouth.
I've had Zero(3)'s design for a few years now, but I decided to add components of Fairy Queen's design. At the end of the sleeves are opposable claws, Although they have nubs like Kirby as the sort of "elbows" which can also grab things.
Dark Rimiru is a pushover.
The Serious Waddle Dee!