I liked the concept but unfortunately ran into some issues with it relating to my hand filling up with tiles I couldn't place. The art was nice and it was very satisfying seeing tiles change as you played other tiles nearby.
I think the idea has a lot of merit if some of the kinks are worked out and gameplay is a bit more streamlined to make it less likely to get softlocked.
I do think the theme could have been worked a bit more closely into the gameplay, but I definitely understand chasing that desire to work on an idea you've been kicking around for a while :D
Great job on the entry!