Solid start! The game has a nice mood to it and it seems like people have already addressed lots of the bugs that weren't able to be ironed out in the 1-week timeframe. I would add: the scene entrance and exit points/triggers usually felt a bit off, like not fully at the edge of the screen. A whole segment of climbing the tower can be bypassed because the player gets deposited at the top of the scene after the cutscene of looking up at the top of the tower.
For the slow movement speed, the platforming was pleasantly forgiving. I really enjoyed the photorealistic cutscenes but there's a lot of visual noise that makes some pictures hard to make out (again, optimizing all of that could take longer than the week we had!) I really enjoyed the tone of the captions and text -- I honestly thought the game text was really well-written.