Congratulations I went to try this out and played through the whole game.
The moveset feels like a nice, simple combination of Extra Life and Junio Sonic with a stomp, and it flows very well. It's maybe a little overpowered, but what mod character isn't?
And the prerendered sprites are absolutely great. Some people might think they clash with the SRB2 style some, and they wouldn't be wrong. Between the different art style, the lack of a spin, and the demeanor I will PG-13ly describe as "very chill," it makes Celadon stand out, he feels less like a Sonic character and more like a crossover character from some 90s copycat or Sonic inspired modern indie game. I absolutely love it. If anything, I'd replace the jump sprites with something like his hat-grabbing falling sprite with a psychic damage field or something, to feel even MORE like he's from a different game. Yet at the same time, the moveset meshes well enough to absolutely mix well with Sonic characters and stages.
Definitely a great character, going right on my "toomanycharacters" modlist.