You've captured this atmosphere of an unknown alien planet really well! I love the character sprite and the music fits really well. The parallax background works well and makes the environment feel a lot more expansive, but I do feel that the screen is a bit cluttered and the ground tiles don't really stand out.
The game could definitely use expanding with longer/multiple levels and some kind of combat (it looks like this is the direction you were going) but this is a really solid start to a platformer, very well done!