I think this is a very well accomplished game. I wasn’t sure about it when I started, but as I kept going I started listening for the wind, and I think that was more efficient that listening for echoes.
For sound design I appreciate how you achieved the feeling of flying faster vs being on the floor, stopping still. I like the ability to choose whether I’m flying or not, and to choose a speed, which I think is a bit what was lacking in insect zoom by jaogwal. I think having this freedom gives me more understanding of the space.
For sound design I would still try to use a sound that might not be as thumping, because I think a canary is too small to make a noise like that. I might also try to find some flavorful ambience sounds and maybe a bit of music. Something to think about for the future. I think it was a very nice experience, congratulations!
Edit: VOD here for a few days: https://www.twitch.tv/videos/2712855875