Solid gameplay. Great soundtrack. The faces feel a little crowded. I'm assuming they are 8x8, which for the board size you chose leaves a lot of empty space.
I did end up noticing that if you make a T-shape (two sets of three that share one of the same pieces), it only removes one of the sets of three. Given that's been a feature since at least the likes of Bejeweled popularized match-three games as a genre in the early 2000s, it felt like a bug worth noting.