I have to admit, I'm really confused by this. First I thought this is a snakelike game. Then I thought I have to gather everything. But somehow water is only gatherable in the desert? Also the buckets also seem gatherable but they are not. Some screens seem to indicate... something. E.g. in one screen there is a "wall of buckets" to the right but it doesn't do anything.
I think you just were short on time, the level seem promising, the art is fun and I just can't shake the feeling that I missed something entirely.