You need to use a different water texture. DX7 just doesn’t cut it.
The texture on that mountain is pretty unrealistic and you should revise your paint alpha technique, as it currently looks sloppy.
The buildings down the bottom are very undetailed and appear to be made of only a few brushes, with only 2-3 textures.
The tower at the top of the mountain is pretty cool and very unique.
You should look at some reference pictures of jetties to make yours look nicer (currently looks like a block of wood, supported by a few square poles).
Definitely has potential, simply because it’s a unique style that I don’t think has been done before.
Keep at it and regularly post progress pictures and ask for advice.