I like the grey eerie woodland style. Parallax scrolling trees, and maybe some mist would add to this nicely. I found the difficulty level just right, and the controls are responsive.
Thanks. We thought about parallaxing trees but that might have made it too slow to play on older mobiles like the iPhone 5SE, so we thought best to get it to run on as many devices as possible for the game jam. But thanks for your suggestion, should definitely be included in the next version.