Looks very promising architecturally. I know it's early, but having an island or some other distant land masses off on the horizon would really make the skybox stand out.
Even without modeling experience, stuff like those anchors I don't think would be too difficult. Still, if it's something you don't want to get into I would seriously consider asking around to see if anyone would be willing to make a few of those props for you. Again, those anchors especially would be a lot better if they were props and not brushwork.
Keep working on this one. It looks like it's got the potential to be a really fun map to play.