Quite laggy but intriguing! Like many others, I only discovered the shelter cave accidentally after wandering around a while. I'm a bit confused why I couldn't use the machete to cut down the vines - if that's intended, why not add a message like "your machete isn't sharp enough" or whatever other handwave?
The graphics are absolutely gorgeous. Reminds me of The Witness, but, like, good. Honestly I'd prefer to play this as a complete PC game, assuming there will be other parts. Maybe think about releasing an omnibus/collected version on Steam for money once it's complete?