It’s unfortunate that you couldn’t finish it, as you have a real eye for a cinematic experience!
Some things I’d note would be to have bigger grid cells. In corridors that I thought might be 2 wide, I could move 3 spaces sideways – I’m not sure if maybe the player is on the boundary of each cell rather than the middle of the cell.
Anyway, good work; I’m sure you’ll get further in the next one!