Very impressive given the amount of time available in the game jam!
The camera felt nice to use, and I liked how it rotated as events happened to focus on what was happening (e.g. climbing up a ladder). I liked the character animations, and the art style worked quite well with the gameplay.
The game also felt quite intuitive to play and well polished! Definitely incorporated the game jam theme well. The lantern bouncing off the walls felt quite nice to use (and satisfying when you bounce it off multiple walls to hit a lantern). Combat felt quite difficult, but that's not necessarily an issue.
I also liked that there were secrets to find (e.g. needing to backtrack to the first room after unlocking the lantern to find the another relic piece). Also no idea if it was intentional or not, but I loved how the "mark of your success" was called Lost Relic Piece (in the Lost Relic Games game jam), was a nice touch.
Overall, I was very impressed by what you managed to do in so little time, and I think this could very well be the basis for something much bigger!