Hi,
It would be helpful if each stone collection had a specific look rather than having rocks that give the same collection of ores having different looks.
Especially as the rocks are now less visible due to the increased vegetation.
For example - using the Alpha QA1 stone collections (one per subzone):

Every in NU stone that gives the subzone #1 collection of ore would use the same stone pattern.
The same would apply to rocks outside of NU.