After playing with his moveset for a while, I can confidently say this is a fine enough mod. Nothing too ground-breaking.
Firstly, congrats on the first mod release! You released a pretty good start for your first mod. Bonus points for your first mod not being yet another Sonic recolor. I'm proud.
Now, for the actual review. First off, I love the ice particles and effects! He feels pretty powerful, especially when super. He feels powerful, but...he looks pretty scrawny. The CSS art doesn't exactly help with his noodle-y looks either. Overall, the sprite work isn't exactly the best, but they're good enough for a first mod, at least. Lots of copy-pasted sprite frames here and there and his animations overall looks pretty expressionless and stiff. I'd recommend making him more buff and get a little experimental and dynamic with the animations.
Overall, make him look more buff and make the sprites more expressive, is all I got to say. Pretty solid start, again!
Some complained a bit about it during development, but I particularly like this jump, it's more of a personal choice, I've never been very good at gameplay on SRB2, having that higher jump encouraged me to play and made the plataforming part easier, if it's okay not to like it.