I enjoyed exploring the alien planet. Exploration is my favorite part of a game, so this gave me something to chew on! Some of the visuals are quite striking: the alien trees, the beacon flashbacks.
However, the main character should have a bit of animation. The player's eye is on this sprite throughout the entire game, so it should have a little bit of motion at least.
I did get a couple of bugs. When traveling from the north to the screen with the river to the west of the base, the spawn location was putting me inside the trigger, so I was getting sent back north. This soft locked my game, since I couldn't escape that area.
Also, the beacon to the east replayed a dialog that I had already heard from Hazel.