I loved the artwork for the game and all the sprites, they really fit together with the theme of the game. My only issue I saw was that when you destroy an ore on the ground, it will almost immediately fall through the floor. Im guessing that the gems are aloud to touch the floor once before they can fall through but since the gem spawn on the floor it loses its short protection to be able to pick it up. Overall the game was enjoyable, especially visually, and you did a great job!