I made this quick scene to practice on lighting and mood. All meshes are vertex painted, no texture were used (except for the sky and the sea). I’m a little bit unhappy with the sea, I think it’s too realistic, and the windows don’t reflect the light properly. So if you have any advices, they will be more than welcome! Thank you very much 
If you want to see those pictures with a better quality, you can go here : ArtStation - Fjord - Lowpoly