I played the game for about 30 minutes.
I like the custom character designs, the idea of a sheep as save point, the mapping is pretty nice, the story start is a bit long to get started, but that's my opinion. I hate the knock knock sounnd as you transfer between maps. I like the crystal collecting, and the digging. The music is okaish, but that will be replaced. I liked the puzzle, shaped like a teardrop. I opened all the chest, then I didn;t know where to go after that. I haven't seen any battle yet.
This being your 1st game, it's pretty good. My game wasn't this good by a long shot.
Keep up the good work !!