They are beautiful. Thank you for sharing photos. We love the arch windows.Here is a link to the care and maintenance brochure. http://clopaypdfs.com/pdf_files/RSDR-CRCAREMAINTBR-17.pdf
We recommend waxing the steel portion of the door surface annually. It is very easy. See the video below.
The composite overlay portion will require a clear coat every two years or so depending on exposure.
Q