Great work done here.
Well executed, color palette works really well, I am glad to see how you established your composition by placing simple shapes in engine and set up the mood before starting, that always works and also well explained in your documentation.
Composition wise, my suggestion would be to use some billboards around the scene to give it more depth.
From the tech side, I think there is an issue with reflections in the scene, the water, mud and wood planks are bland, by fixing reflections will increase the quality of your scene .
Overall, the scene is lovely, easy to read and I like the color palette , great job.