I could see how this could be used in the background in a game with an exploration type action to it. The song didn't have much of a hook to it. With that, it could be used for some relaxing background music - Animal Crossing and Loom come to mind.

I love the concept of stumbling onto a hidden garden, maybe more reverb/delay on the piano would've suited that more but I enjoyed it.

I love that intense mysterious intro! Throughout most of the piece, it has this comfortable ambient feel, I could definitely see this being in a game. However at times it becomes repetitive, maybe switch it up with jumping to different octaves? That's one simple suggestion, there is a lot you could do. Great work, I enjoyed it!

I really like the overall mood you establish with this piece, and the motifs you have are nice. I do agree that it's a bit repetitive, maybe you could try playing those motifs you have in different octaves throughout the piece? I could see the motif played down one octave having a very deep, grounded feeling reminiscent of a forest, and in one octave higher, having a very mystical feel. You could also try diversifying your left hand as well. Move those octaves up and down, try other intervals like 5ths and 6ths, or maybe just have one note playing at times. Try experimenting with your ideas, and I think your piece will become even more atmospheric!

It's very repetitive and it doesn't feel like it goes anywhere for a really long time.

However, I particularly liked the first few measures after the intro where there wasn't a lower register piano because it felt more ethereal but the bassline takes away from the "hidden" part for me until much later in the song unfortunately.