It's of his cool blue water-type Cinderace! They're made of wishiwashi (the fish pokemon from Pokemon Sun and Moon who form a big group to become a bigger pokemon!) I tried doodling stuff with his water-type scorbunny, but this water-foot fire-foot thing seemed kinda fun and interesting, and them combining and touching foot paws while powered up, and making lots of steam and smoke together seemed unique. :3 So, just some fun time with our bunny paws, don't mind us~
Visual Description: My short fat cinderace on the left (the white and red fire rabbit from pokemon sword and shield) and a blue tall and skinny cinderace on the right, with a blue water and fish color scheme, lifting their feet up and touching their paws together, with their feet blasting out fire and water power together, which results in a lot of combined flames, water splashes, steam, and smoke above! With some text that faintly reads, Happy Birthday!