I really enjoyed reading this! It was an interesting world building - you're very good at character building and going through with their characterizations (“You are a slave to the minutes...” versus "We could have died earlier, and we could die at any moment.", which I really loved, because it mirrors the characters' beliefs really well).
I need to admit I was a bit confused in the beginning (~ the first page), which didn't seem very coherent throughout the sentences and dialogue. I really liked the pov of the crow, though! I was a bit disappointed to get to know that not the whole story was written through the crow's pov and that the crow seemingly got forgotten after it changed to the old man's pov, though I understand why you might have decided to do so, and that the crow is a metaphor for the old man's feelings.
The conversation was maybe a bit too dialogue heavy for my own personal preference, which leads to me not feeling too much like I am actually in the story/moment. But that's a personal preference, and I think the said dialogue was definitely worth it :D