Playing a bit more with this workflow. Main shapes and primary details sculpted in ZBrush, the rest were made in Designer.
You can get it here:
ArtStation: http://bit.ly/art-algae
Gumroad: https://gum.co/PYwGX
Cubebrush: http://cbr.sh/4s7sku
Here is another material made with the same workflow: https://angelfernandes.artstation.com/store/q3Jl/stone-wall-substance-designer-zbrush
And here is my Substance Designer course at Domestika, 50% off and in a few languages: https://bit.ly/angeldomestika
Close-up/zoom into the texture in order to see the details I add with SD. Details are subtle on the normal map, and going slower. It's probably best to use the slider on the video player.