Have no clue what mods you're using, most of us use one of the env mods and all supermods have an env. mod included. You mentioned a few mods, so not sure what you're doing. As far as trees, the texture isn't as bad as they look, I think more to do with an old game engine, plus your video card and settings can have great effect, but most of us aren't bothered by them. They're few rock and sand mods that help the look of land.
These trees aren't close up, but not too bad, few of us get close to them anyway out in the ocean.
