A scenery I've made with Unity 5

After several days of playing with Unity 5 I decided to make some random scene.

Several hours later and here what I got:



What do you think I need to work on?

 

A good start.

I can see the tiling of the texture, try mixing some grass textures and other rock/dirt textures to reduce tiling or swap teh texture
maybe add a road or some sort of "scaffolding " up to the house and some rocks coming up from the sea
tip: reference images are nice for inspiration, google northern norway for some awesome coastline nature.
I found this.

 

Agree with everything Hoegbo stated. The reflection needs to be muted/blurred/diffused quite a bit also.
Most lighthouse paintings usually have an eye leading rickety fence to direct the eye up to the lighthouse and often an old row boat propped upon the shore.

If you could use some type of mix/blend material for the water, along the ground bank for the white wash, that would add a lot of realism as well.

In addition to some rocky outcroppings, some grass (mesh) patches would also break up the silhouette smoothness of the land.

The building is nicely shaded.

 

Water is my biggest concern. I don't know how to make reflections blurred or stop its normal maps repeating over and over.

If any of you guys know any alternative to this water I would be glad

 

No Unity specific solution, but the best way to eliminate repetitive tiling is a larger normal map, procedural mapping, and/or mix/blend mapping.
I haven't dealt with any water solutions or shaders for that matter, so I'm unsure about the blur for reflections also. Can you put the sky map you used into an image editing software package, blur it up good, and put it in the reflection slot of the material/shader of the water, and match it's tiling/offset to the sky map?
Sorry, I know these are vague, but maybe will lead you into a proper Unity solution.