Here's my full workflow:
1. Take photos with my Pentax K-1 MkII.
2. Use Photos on my MacBook Plus to import the raw originals to that Mac. Note: this app is NOT connected to iCloud Photo Library.
3. Filter out bad photos and unnecessary duplicates using Photos which moves said photos to Recently Deleted.
4. Open Recently Deleted and finally delete them.
5. Close Photos and go to Finder.
6. In Finder, open the Masters folder (inside the Photos Library) and copy the new folder of photos to the Originals folder on an external disk, changing the name to reflect the date and location of the photos (if necessary, splitting into multiple folders if I took photos at more than one location). So, for example, were I to take some photos in my front yard this morning and import them, they'd be in folder "2018" in "Originals" in a folder that I'd name: "H-Aug 26, 2018 Frontyard" -- the "H" is there to keep the months in alphabetical order. At the end of each month, I consolidate the month's folders into a new folder named for the month, so this month's will be call "H-Aug 2018".
7. Make an immediate backup of the new folder to another external disk on my downstairs iMac -- I do not bother to consolidate the backups by month. They are just there in case of emergency.
8. Fire up Adobe Bridge and review the photos looking for the ones I will be publishing, that is, the ones that will appear on my Apple TV and be posted to Flickr: Dave Saunders | Flickr. I also usually post this photos with a commentary to Facebook -- when I'm being really diligent, I transcribe the commentary to Flickr, but lately I've found this somewhat overwhelming so recent Flickr photos are tagged and organized into albums, but I've been skipping the descriptions.
9. Use Camera Raw and Photoshop to spruce up the selected photos for publication -- I almost always use an image size of 2560 x 1440 to match the aspect ratio of the television.
10. These images are saved on a different external drive on another computer (a MacBook Air I call "MediaServer") in a folder called "Birds of 2018" which in turn is in a folder named "ForAppleTV". That folder is synched with my Apple TV as the source of photos that are available for viewing on the Apple TV.
11. In order to keep track of my list of species for the year, I organize the photos in "Birds of 2018" into species folders -- but this happens only after I have uploaded the images to Flickr and added each photo to my "Lifelist" folders. These are stored on an external drive on the MacBookPro.
Now we reach the point in my workflow that I have recently changed. There's another couple of places where I want to publish my images: my iPhone and my iPad Mini. The iPad Mini is new and is to some extent the straw that broke the camel's back and forced me to change the workflow. Before it came along, I didn't use iCloud Photo Library, but instead used synching by iTunes to put copies of my published photos on to the iPhone. But now, to bring the iPad Mini into the fold, I've switched to using iCloud Photo Library and so, as of yesterday, the remaining steps in my workflow are:
12. Now that Lifelist is up-to-date, I fire up Sync Folders Pro and manually backup Lifelist to another disk on MediaServer.
13. I fire up Photos on MediaServer -- it is connected to iCloud Photo Library as are the iPhone and iPad Mini. I import from the copy of Lifelist on MediaServer and it readily works out which photos are new and displays them for me to import. I check the option "Keep Folder Organization" and import the new photos.
And this is where I get into the mess that kicked off this topic: instead of augmenting the existing Lifelist folder and albums with the new photos it creates Lifelist (n) and a new set of folders and albums that then have to be merged. I spent two hours merging last evening. I thought uploading to Flickr was tedious but this is worse.
Thanks for your interest.
Dave