I agree levels are a bit easy right now and after the jam I intend to fork this game and design new levels. I had very little time to actually do level design and I thought that if I could find the right balance of easy but still challenging then the game would be easier to play during a jam.
About the tiles I could've simply created tiles beyond the border, which would give the impression they connect, but I found a glitch where you could stand in those tiles and get lost outside of the screen, so I avoided placing tiles outside your fov. Definitely will try to improve that and the layers.
Thanks for playing and for your suggestions.