It's getting better and better with each release :D Highland looks stunning with the new textures, and the rest is the same old amazing stuff as we're getting used to. Which is awesome!
Minor room for improvement:
The new curbs at Imola appear a tad too saturated, especially the green that looks like a weird glossy reflective surface in some lighting conditions. Also, aren't the run off areas at Aque Minerale black just like the patch at Piratella?
Regarding the seasonal options for the Nords, I second everyone wishing for more variations. But rather than spring, I'd love to see a "wet winter" or "bare fall" option which is more in tune with what the Ring looks like for about 1/3 of the year.