Looking good! I’d say it absolutely fits the style. There are just a couple things I would recommend before calling it complete.
Try varying the size and shape of each clump so that it doesn’t look like identical spheres stacked together.
Filling this hole on the back of the bush:

Checking for any faces that are too close together that will cause z-fighting and flicker black:

Using some translucency so that it appears softer overall:

And finally, you could try adding some color through a procedural gradient or noise texture if you have the time.
Excellent job thus far, and I think with those final touches it’ll be perfect!