I'm still following the thread, and added to it below on the subject of CMYK.

You didn't make any mistake creating that image. The blue is surely too "hot", but I don't have an objective recipe for making it go away. You can make corrections by eye, like turning down the saturation 45%, which most people do. You could even force the color by reducing the green channel 25% and the blue channel 40%. But those are subjective fixes. I don't know of a sure-fire way to do it that's rooted in scientific fact.

Note that the sundial doesn't show the same type of surface as in that image. The images come from the same general site, but different locations within the same site. The image ID encodes where the images were taken. For a sundial image it's:

1P133066146ESF06GOP2841L4M1

for the tread image it's:
1P133074276EFF06GQP2404L5M1

Site six; location GO for the sundial, GQ for the treadmark. Also, I think the direction the camera is pointing relative to the sun is a factor in bringing out the blue.

These images can be really gnarly sometimes.