I'm sorry to have to tell you that your map has been REJECTED. The theme is not very original as there are countless maps revolving around the sea and ocean (see below), but, this is a somewhat different take on it. The build is not very attractive due to the lack of block variation, pixel art, and the majority of it being floating. The PK length fits the medium difficulty but the difficulty does not at all (it's not easy enough to be an easy but it's too easy to be a medium). Also, the PK lacks any sort of variation: It's almost all jumping from prismarine pad to prismarine pad with some slabs and ladders here and there and even these get repetitive due to them being identical sections. It's linearity and straightforwardness makes it unenjoyable. The PK was also almost all floating, which greatly hinders the build. Don't let this discourage you, I see potential! I hope to see more map submissions from you :)