You saw some improvements on logs yesterday, so I wanted to do leaves as well so trees are fully revamped.
Leaves now use a better splatter method that doesn’t clip as harshly at the original 16x boundaries. They are now spread across the original pattern but also overflowing a bit where it makes sense. The original pattern remains perfectly visible.
I also carefully re-crafted normals and heightmaps, giving much more volume and shape to leaves. The mahogany fruits on the jungle tree now also have much better normals/heightmap and were re-designed much closer to vanilla.
All screenshots below use Kappa v4.0 E3 shader from the awesome RRe, check out her stuff on the official RRe page.
spruce leaves 
oak tree with leaves and round trunk 
another shot of an oak tree 
birch tree trunk 
birch tree with revamped leaves 
another angle for birch tree trunk and leaves 
a large oak tree trunk and leaves. Notice how the leaves in the background match the vanilla pattern. 
an acacia tree 
close up on acacia leaves 
another acacia leaves close-up 
acacia tree from below the canopy, with trunk in the foreground 
mahogany tree (jungle) with revamped fruits and visible round trunk 
notice the detail on leaves as well 
another jungle tree shot
HardTop Vanillaccurate 