I like that it has a portrait orientation. Your heavenly music choice was perfect because the character is ascending into the clouds. The jumping sound effect was also perfect. Showing the score encourages me to keep going as far as I can. I have actually spent 20 minutes trying to get to a score of 50+. One suggestion I have is to make the game more difficult the more you ascend. Maybe increase the speed of the moving rocks or decrease the size of the rocks.