Trying out some modelling:
Shaded:
Wireframe:
I have this feeling, that the trunk or the boughs might be a bit too short. It also might be too uniform, when it comes to the boughs and branches.
I'm not really sure with methode I'm going to utilise, when it comes to the branches with leaves. Having single bend planes would look more realistic, but three planes intersecting (like the trees in pl_borneo) would be way easier to do, both technically and aesthetically. Some people REALLY hates the look of the trees from pl_borneo though.