Absolutely fantastic! The only complaints I have are that it had motion blur and it was pretty short (but accurate to the estimated time in the description, I played for 28 minutes). I think you could make a much longer game out of this concept if you would like to. It reminds me of "What Remains of Edith Finch." I think you guys could make a heavy-hitting game like that if you put your minds to it.
Edit: I didn't even notice the comment below this that mentions Edith Finch. I thought that I might be the only one thinking of it, but I'm glad to see that I'm not.