The art style is gorgeous. You have a real talent there!
Like others have mentioned as well, I didn't understand the dying to progress mechanic until I read the comments here. Mabye a quick bit of text before the next run, or not returning you to that start menu to give more a feeling of progression rather than making the player think they're restarting.
Also my potato of a laptop was struggling to run the game, which was odd because its a static scene so it shouldn't have been too heavy to run. Might be worth checking the profiler to see whats eating up the most frame time to make it a bit smoother on lower end hardware.
Overall though I enjoyed the experience, and seriously the art style! I would play a whole rpg if it looked like this!