This is a very well-made game! The graphics and audio suit things well, and the puzzles are intuitive and well-designed.
Two things come to mind that could improve the game. One: add a feature that lets you see all the clickable areas on-screen easily, mainly because sometimes it's not intuitive which ways you can go from each screen. Two: make the clue for the five-digit code a bit more obvious, perhaps by highlighting the "digits" on the plants parchment.