FMP: Trees

I have 4 kinds of trees almost done. I just need to finish bark textures and adjust foliage. Branches are too planar right now. Also I'm worried about poly count, as for now each tree has less than 2 000 triangles which seems way too high considering I have to build a forest.

Oak is about 3 000 triangles but I want it huge that's why I put additional edges in the trunk.