I dig it :0 If I saw it in a game, I do think there'd be a certain uncomscious expactation for it to have a reson or a purpose

Oh, and uhhh, you might want to rethink the octopus(?) sprite (5th from the right). It kind of looks like a person in a space suit with a very... sizeable frontal attachement.

Bottom gives the sprites slightly more depth, so my preference is that one

these are delightful