I like it. Maybe it's time to start an "Old Rusty, Lichen Covered Farm Equipment" thread. Or is there one already? Lord knows there's plenty of subjects around here.
I do find the spectrum of colors found on lichen a natural subject for macro photography.
I also like the fact the shot was taken in SW Idaho. In high school in the mid 70's we would drive 100 miles to Idaho Falls for Big Macs. Brother in law from Pocatello. Relatives of his still own the homestead ranch near City of Rocks.
Thanks for the image that prompted forgotten memories.