Help needed to make art better

Here is a reference I am currently using to make this scene. How do i make my scene more like in the reference? I have tried adding volumetric box around the scene to give the foggy effect and places two area lights on top. For the grass I have used grasswald add-on…I need it to look more realistic. Everything looks very plastic and rubbery as of now…
Please help me make it better in some ways…web.whatsapp (1)