I like this very much. The landform is nice, and there are a lot of regions and names. I'm sure you spent quite a lot of time with that :-)

My only complaint is conditional: if there's a sea, I think the map would look better if it was more present, if it looked more like a sea; on the other hand, maybe you're just trying to convey the meaning of an incomplete map, showing only those regions you already have. If so, I'll shut up and just bask in the map's glory :-)