i made some vegetation assets, some trees, some mushrooms, a branch, a bush and a cut treetrunk

all textures are self made, using my own resources, i also used texture paint for better results (for example for the mushrooms)

they are not really low-poly, more mid-poly, but i included LOD models

the trees, the bush and the branch are made with the sapling addon.

here the tris count, with LOD variants

branch: 440 / 206 / 126

tree (no leaves, like a tree in winter): 720 / 462 /227

tree(leaves, created by sapling addon): 880 / 525 / 321

tree(leaves, manually placed): 726 / 476 / 278

cut trunk: 350 / 159 / 88

bush: 424 / 290 / 153

mushrooms 1 - 3: 226 -250 / 130 - 142 / 52

mushrooms 4 - 5: 82 / 38