Pwetty nice! ;) Seems definitely polished and well thought out, although those rotation buttons are kind of far away from the action which distracts a bit. Or, perhaps after a click on the hexagon some rotation buttons could appear next/over it. But the question is how to make it mobile friendly I guess so they are not very small for your fingers, right? You probably considered that option as well, I guess. On desktop it doesn't matter, you could squeeze them somehow without interfering with outside hexagons for changing. But definitely a nice game, meow!