Can't wait for Coldsteel the Hedgehog Peach.
That aside, I feel that while most of the variations are good, I feel the hair not being blonde is missing part of the joke. I mean, Peachette is basically Peach with Toadette's features and even retains the blonde hair. It mainly looks like Peach in a Toadette-styled outfit. It's like a bit of a mockery of people wanting Peach as a playable character, yet we get a Peach clone that has the features of Toadette to make the power-up look like something "lore/game-changing".
With the first Bowser Peach image/comic, it was once again Peach, but with Bowser's features and still keeping the blonde hair. And the comic jokes about how Mario and Bowser wanted Peach, but she refused them, leading to Bowser transformed into Peach for Mario, kinda like how we wanted Peach as a playable character, but the developers refused us and lead to Peachette. Like the different hair colors aren't bad at all and aren't out of place, just feels like a joke is being missed. So because I feel it adds to the joke, I like the artworks and variations that keep the blonde hair.
Also, got to post one that really got me laughing once I got the joke.
Also, bonus variation: