Now that was good adventure. As soon as I saw the artwork, I remembered Queen of the Snakes, which was also an excellent game. This was terrific.
You have a great visual style that manages to capture wonder, fear, and beauty all at once. There are not enough good hand-drawn games left these days, but you bring something unique to your art style. The style can be somewhat busy, making navigation difficult, but there aren't enough locations in the game to really confuse anyone willing to look closer. The level of challenge was just right, with practical visual clues that just take a bit of consideration. The way the music slowly gets more and more complex as you complete the crystal puzzle is a great way to keep the excitement building.
A solid game. Good job.