The artwork is soo cute, I love it! I also like that the whole UI feels very consistent and that important features are clearly visible.
The game idea also seems interesting, but right now, I felt like there was very little strategic depth to it. I had the impression that it really just came down to who got the luckier dice rolls. I do like the idea of double-using the dice as a health system, but I think you need to be a little careful to not double-punish the player, as having less dice available also makes it harder to roll good.
If you find a way to give it more strategic depth, I do think this has potential to turn into a neat little strategy game, though!