Fun puzzle game, here are some thoughts..
- I couldn't find how to rotate the items as I see you've done in the screenshots, some instructions would be nice.
- The game goes black if you fall into the water on the first level, it doesn't reload.
- I believe you've set the resolution too high, I usually do 1280x720 for WebGL games and then players can use the full screen button if they want to play in full screen.
Good job for such short game jam 👍