I really like this map, because it totally evokes a sense of being an alien world. So, you're on the right track!

Some constructive criticism: Personally, my eyes aren't accepting the visual cues that land is land and water is water. Since you have much of the land being black, it seems to be deeper (like on a height map). Likewise, except for the red stripe in the middle, the water stands out more, and appears higher. My brain keeps telling me that your seas are actually land, and your land is actually a hole into outer space (due to the colors you chose).

*shrug* But it's a cool style, and I'd hate for that to be lost, so dunno what I'd advise should be done about it.