Small updates to this project. Changes to materials and assets. I also decided to give LPV a try. I think it does a lot to the overall lighting. Now the difference between directional and ambient light is much smoother. I also noticed some issues with LPV but those are just a limitations that I can´t do anything about. I´m going to left lighting as it for now. I guess this is as good as I can get it with dynamic lighting.
I also made a somehow modular rock wall and a Substance Designer graph that gives me mossy rock textures based on hi-poly sculpts. I´m going to have fun with this in the future Its fun to make stuff with SD when you have made a huge library of different materials.