I have so much mixing emotions about this 😂 I'll start by saying that I DID enjoy the game and I did have fun but there were some moments that left me uncertain. I still have to remember that it a game jam version so don't take my comments too serious :)
1. I always look at details & UI closely so I can't not notice that during the intro (red text on paper) you have standard font which looks so out of the whole aesthetics. Possibly it was a last minute change and then its understandable.
2. I did love the intro game with instructions but would love it even more if it was more forgiving (time wise) or ink wouldn't run out during that level just to give more time to player to adapt. Another thing which would been better (IMHO) is font selection on the floor. The idea of blood stains is cool but while your time is running and you try to figure out how to play, how to get yourself out of the wall its hard to focus on text that you need to put effort into reading. If those instructions would be more clear then the problem would disappear.
3. Slowmo was awesome, loved the effect. Wish it would last a little bit longer to give more satisfaction. I felt like it ended too soon.
4. When I was in the office levels than I got stuck in multiple different furniture although level before it I kinda could go through it. Basically a better understanding of surrounding what to avoid (where you can get stuck) and where you can actually fly. Maybe even make areas a bit bigger to give more room for maneuvers
Overall the concept & movements were awesome and fun. With some improvements it can become even better so I think you really did great job, especially within the gameplay aspect.