Use the smooth tool around the edges of the island.
Well, its supposed to have a hard edge because those are steep rocks and it addes definition. If I round it it will look fake. I will, though, try and remove some of the super-hard edges that I think you are talking about.
I'd also recommend working on lighting and skybox (just doesn't seem right),
Well, the skybox was from another map. I matched the fog to the sky so it would blend in. I know its kinda pinkish but thats what works with the sky. Maybe I can tweak it a bit.
and perhaps get a new texture for the water.
Yeah, I noticed that too, kinda odd looking. I'll see what I can do.
May also be an idea to decrease the waters opacity, and increase the wave size.
Good idea.
should be a bit bigger
Trust me...there is Plenty of space on this island. just the flat ground area near the bay is about 13 64x64 baseplates wide..and much longer. If you can fill that space thoughtfully...you call me :)
should have better shore line
Despite what other island maps may have you believe, real islands typically have a mixture of beachs and cliffs (usually more of the latter) and I tried to have a system on my island. I figured if I only made 2 beaches (one on residential island and one on back of mainland then people would be more encouraged to build whatever there (sandcastles, umbrellas, deckchairs, ect) rather than spread out. Also, on the city side of the bay, it was deliberately left rough and sharp so a harbor could be built.