Managing technology beyond paint and canvas

I decided the "Caribou Migration" is done and signed it. Now I have to get a good photo of this long picture without distortion or glare.

I try to keep a good photo of every art piece completed. Often I take in-progress photos also since they are useful for revisions or interesting to the purchaser. The trick is finding them later in the 40,000 digital photos. Titles and keywords are now my friends.  I have given up on folders, albums and other standard filing concepts that can be messed up by a major update of Apple Photos. Remember iPhotos? and Aperture? I still have those photo files but the current Photos program can only show them as on-screen postage stamps.
Should I be worried about losing the whole collection in a digital glitch? My school library's digital catalogue was hosted on a mainframe in the World Trade Centre - what could go wrong? Therefore, I have full backups on iCloud, iDrive and Backblaze. They are also saved as basic jpg files in Amazon Prime Photos and on hard drives in a safe.  Now I only have to remember the passwords...
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