This was really fun!
The overall idea here is very cool. Guiding the moths by turning on/off the lights is a very neat idea that I definitely think this is a good base for. I'd be really interested to see where you would take it from here. The music and the overall experience made it a very relaxing game. I did find myself wanting the moths to move a little faster at times, but then I'd just start looking around the environment and focus on enjoying the experience of the game.
Awesome job, especially this being one of your first games made in a new engine. Game jams are perfect for diving face first into something like that and seeing what all you can figure out. And it looks like you figured out a lot! Congrats to both of you, I hope you're proud of what you were able to accomplish!