This is the same image of Evins included in my book, Faces of the Confederacy. The original is part of the collection of the South Caroliniana Library. It's part of a larger scrapbook, which contain other information likely of interest to you.

Other images of officers from Orr's Rifles in my book include:

George W. Fullerton (South Caroliniana Library)
Andrew H. Ramsay (South Caroliniana Library)
Nimrod Kelley Sullivan (South Caroliniana Library)
William McNeill Whistler (Collection of William A. Turner)

Best regards,
Ron