Hi, I played the game. I like the idea behind it, it's a pretty creative theme interpretation. I also like how the difficulty curve is just enough to keep the player on the edge. I really loved the color mix mechanic, that added a lot more strategy to the game. Weirdly this games feels a lot more like a strategy game than a puzzle game, but puzzle games do have some strategy in them, i suppose. The UI is really clean and crisp, this game is very well polished and has a good feel to it. The sound is good, even without music. Now, I haven't played every level, so I assume there is variety. The controls feel nice and fluid. All and all this is a really cool game, I couldn't find anything wrong with it, so I can't give any recommendations. Well done.
Edit: I just notice the name is "ColorBOUND" lol.