Been working on the post processing for that environment. Had some real trouble getting it to look right in the forest and vista at the same time.
I might also change the light at some point. Atm its a directional and skylight and I would like to keep it simple as this environment is rather big, the light direction has to stay the way it is atm as there is a cave with a breakthrough in the ceiling that has light flooding in for a cutscene.
Current status:
I still struggle a bit with understanding how to use foliage in unreal. Atm its all instanced and set to movable as it seems that instanced meshes dont support lightmaps for lods. I then removed the shadows from all the meshes that dont need them or are very small and use inset shadows instead.
Took me a while to get it right. This is what it looked before which was horrible:
Im also still tweaking eye adaption, it seems to give the image a green/yellow tint and I really dont like that. Maybe I can get rid of that with some color correction in the post processing.