These look SO good! The render above doesn’t do it justice. I only have a couple notes.
The leaves should have some specular, even if it’s very little in the 0.25 -0.35 range. When you add light it really helps to define the shape. Also in the below screenshot is some very subtle translucency mixed in which helps to bring some light to the other side of the leaves as would happen naturally while also making the color blending a bit softer.

I would also love to see more color variation from far away. I think the leaves look perfect up close, but once you zoom out it starts to look a bit blobby and mushy. Perhaps varying the color of each leaf super softly and also some larger 3d procedural noise could be of some use here.
There’s also this one random spot that looks like it’s not as attached and the leaves feel squashed compared to everything else, so it kind of sticks out:

Full points for this week, keep up the great work!