I suppose it could look very nice, sure, but I can’t imagine playing with a tileset like this. It would take so much time and brain capacity to learn to recognise each combination of four differently coloured triangles in a square as a specific thing in the game world.
I really don’t want to diminish your creativity, but I would be surprised if it actually turned out to be worth the effort.
Heck, I don’t know, maybe you’re just way smarter than me and won’t have any problem with learning to associate these simplistic tiles with the game world.
Good luck!