Very beautiful rendition of this idea. I love that the die is translucent and you can see all the sides, sorta. I also love the sideways spaces, like FanManPro pointed out. Also I like the calming atmosphere.
One piece of feedback: it's a bit annoying that the music restarts when you beat a level. Would be better to keep it going. One more thing: the isometric view doesn't really match with WASD super well, but that's not a big problem.
Would be great if you could also check out our rendition of the same idea! :)