This game is lovely, thank you for creating and sharing it. The voice acting is superb, the story is very moving, and the soundscape is so lush. I mostly played with my eyes closed, but the character design and visual style are also very nice. I especially love the design of the winged rabbit companion and the other little creatures.
My main critiques are the UI not being keyboard friendly, and getting stuck on obstacles and slopes in the world, both of which other people already mentioned. Another suggestion is that it would be helpful if the companion made a sound while it is moving, not only while it is stationary. If you are playing without sight, you have to walk a little bit, stop and wait to hear the companion, walk a little bit more, and so on, which gets a little annoying. Also, sometimes the companion gets in a loop where it moves back and forth without ever stopping, so it never makes a sound to guide you.
I like that you have a sound when a cut scene ends, that is very helpful. It would be good to have a sound when a cut scene begins, too. Some of the cut scenes don't have any dialogue for several seconds, and I couldn't tell why I suddenly seemed to have stopped moving.
It's awesome that you thought of adding accessibility options for color blindness. But, the options you added will not actually help color blind players. This is a common misunderstanding, and a pet peeve of mine, so forgive me for giving a little lecture. :) The filters you added do not compensate for color blindness, they simulate it. They were created so that people with full color vision can check that their designs are accessible. Players with deuteranopia, etc. will not see any difference when using the filter for their condition. There are some filters that can help make similar colors look different, but they are not good for most games because they make all the colors in the game look weird. It's better to add options to change only the appearance of the things that look too similar. But, this game doesn't need a color blind mode anyway, because it doesn't rely on color to convey information.
Anyway, I loved this game, I only write so much because I hope you keep improving it. Very nice work, you should be proud of what you created! :)