When you click to look around, the cursor disappears. This makes it kind of hard to destroy the wall as you need to navigate to the wall without turning the view which can include some challenging movement.
The text of signs clips through things and is difficult to read.
The special items like the boots need tooltips. I figured out how to jump by guessing. Not sure what the other item does. Also not sure what capturing the frog did for me.
My play through was 35 minutes. 15 of that was trying to find out how to progress until I accidentally walked through the waterfall. I was about to give up. I didn't find the hidden hint until much later becaus I had not figured out how to look at the back of things at that point. A better tutorial is definitely needed.
I feel like you should be able to manually mine wood, but pressing e at the forest does nothing.
The day/night cycle is annoying. It gets too dark to see what you are doing, maybe add an option to control how dark night is.