Unless I miss the mark here, I'd say it looks like you are working with Tear's tutorial. If so, I'd recommend following his instructions for generating see bumps near the land masses, and hiding them elsewhere. Currently the sea looks like nothing so much as a set of cloud patterns, and to my eye the even distribution of sea bumps over the entirety of the map sort of distracts away from the land.

Cheers,
-Arsheesh