As promised, I’ve continued my experimentations with rocks. I also tried Substance Painter for the first time and I must say I’m quite impressed by this software. It’s really user-friendly and super powerful!
Anyway, I trashed a lot of failed attempts and restarted from scratch several time but I’m quite happy with those 3 so far. I intend to add at least one smaller rock to the pack, maybe a medium one as well and create some material variations.