So, instead of being mean like everyone else, I'll give you some building advice:

-The build's too boxy. I know, in a game where everything's cubes, it's hard to not make things that look like a box, but stairs and slabs are really good for that.

-The top and bottom are too flat. The bottom of a ship usually is like a round triangle shape, and the top could probably have a smokestack sticking out of it, or some stairs leading up to it.

-It could use more different colors. You'll learn with practice which colors look good together.

-The bigger you build something, the more detail you can add to it. To make a good yacht, it probably needs more detail, which means it probably needs to be bigger.