I liked the sound design, animation, and the overall vibe of the game. The 'click' of landing blocks in place is very satisfying.
My main critique with the game is that the player has a bit too much control. With the powerful abilities of matching tiles diagonally and holding blocks for later, the player can clear the initial state of the board within a few seconds of starting a level. From then, it's just a game of how fast you can sort the blocks into color columns.
Because of this, all of the fixed levels are virtually the same, except the ceiling gets increasingly difficult to deal with. Maybe I'm just missing a major aspect of the game by not utilizing combos well enough.
That all being said, I still spent a good while playing this game because you did a really fantastic job with Game Feel, so every move was very satisfying. Nice work!