The Trees are overused and the forest looks overall very chaotic. Have you ever been to a forest? Fern mostly doesn’t grow in a single plant, but in a “bush”. I recommend looking at pictures of a forest and working from there.
You have exactly 4 assets: small Grass, Fern, Tree and Rock. You need to increase your asset pool to get more variation.
The Ground is very randomized (probably through noise) but at the same time very planar. Add some hills and pits.
You should also work out the trail. Trails are mostly even because they are manmade, but your’s is uneven like the rest of the ground.
I suggest to search/create different textures too, since the textures are too bright for a forest if you ask me.