I really liked the art and how the game is "smooth" as an experience. It can definitely be turned into a great full experience with more variability and a bit less linearity. But it was quite pleasant as it is. I really liked how the background visuals reflected your current activity and were fiddling in a smooth and entertaining way. Yet later, it became a bit disconnected - it would be cool to have some visuals representing the species you create.
Great submission! Especially for the first one - well done!