This is a pack of 12 trees. 8 oak trees 4 smaller, wispy, variants of my own.
They are very high poly, and if you need multiple trees in your scene, I recommend instancing the same few if you can get away with it.
These will look great in far shots, and medium shots. For closeups be warned, little tiny details like twigs and connecting polygons between the branches and the leaves are not modeled. This would make for a ridiculous polygon count.
Check the images to get an idea for distances, These were rendered with fairly standard sun and sky, and miax materials.