This was a really nice idea for a game - I love games that centre around the concept of ghost hunting and it fits the jam theme well. The art style was really nice and the music was really appropriate. The game play loop itself was quite satisfying and I really liked that the accessible rooms kept expanding with each level.
A couple of criticisms I had:
- When restarting and level or transitioning back to the menu there was a noticeable music bug that sounded like a record repeating. It only lasted a second or so, but was quite strange.
- The Next Level button just sent you back to the level select screen rendering it a bit pointless as there was also a Level Select button.
- The speed with which the movement / picture taking UI meter filled up was a little quick, it made moving around a little stressful which obviously hampers the players enjoyment a bit. Once suggestion I thought of was to make it fill up more slowly, but have bronze, silver and gold markers on it. So the first time you complete the level, you can do it casually. But then you could actually play again, trying to complete the levels using the most efficient route.
Hope that's helpful! Good work on this :)