Thanks for input everyone.
jbest: All the white is foam. I agree it looks a bit heavy.
Dune: Thanks, I'll try reducing the displacement. I too think the shore need some content, just need to make up my mind about it.
njeneb: I've populated the left bank for you now.
The closest trees are European Aspen from XFrog. These are quite common many places near the sea. I know this species has been used a lot traditionally for constructions in the water because it is not easily destroyed by wood eating worms living in saltwater.
The grass is dandelO's PGS, tuned down to fit the scene. I don't know who made the cottage, but its garden tree is a Chestnut made by Marc Gebhart. Bushes are from Mr.Lampposts basic bushes pack.