This is simply my personal opinion:
Theme: It was very related to the theme and exploration was a good added touch to the game. 5 stars.
Fun: The game itself was fun to play but the broken controls and the fact you can't progress futher than the first checkpoint makes me give it 3 stars.
Controls: They need a lot of love and work, first of all jump makes you slide off platform. Secondly screen changing doesn't work properly and even if you moved on to another part of the map, camera is still stuck on the underground part. The enemies are weird on their moves and spawn everytime you change camera even if killed. 1 star.
Graphics: I enjoyed them and they fit the style. The animations were top-notch and I have no complains about them. 5 stars.
Audio: It was good but it lacked some sfx could have boosted the overall. The soundtrack just makes me want to chill and hear it all along a lot of times. 4 stars.
Originality: I didn't understood the whole concept of the game but it seems metroid related and thats it. There isn't much except it's a metroid platform, like something to shine and stand out. 3 stars.