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!