Just finished the model and the material, updated at Sketchfab. Here the link to the see the realtime model
I used a 2K Difuse, 2K normal, and 512x gloss, spec, emission, and lightmap.
Difuse had been handpainted over the baked AO from the model.
Final geometry is 10.5k faces
To pump up a bit the model, in Sketchfab, I baked a light map with shadows in it. Also use a bit of mapped emission from the leaves and tips of the grass to emulate subsurface scattering.
I had a blast with it and was very good as a practice to handpaint or use pbr shaders.