This is amazing.
There is a tremendous need for this sort of resource, and you are filling that niche in a good way.
I really hope you make a few more collections of this kind, because "buildings in different stages of upgrade" is not a thing I've been able to find anywhere, and these look *great.*
I've bookmarked your normal website and have just decided that it is the first spot I need to go when I need Icons. (Those keys!!)
Top ratings deserved; 5/5.