Can you show me how to import images from iCloud and iPhone into Lightroom?

Easiest way is to install Lightroom CC on your iPhone. Log on to your CC account in Lightroom CC on your phone. Hit the little plus photo icon. Select "Add from camera roll" (for images shot using the camera roll or from iCloud photos (make sure iCloud photo library is enabled on the phone). Select the photos you want in lightroom and add them. Now in Lightroom Classic on your computer make sure that your catalog is set to sync and it will download the added photos automatically. If you are in Lightroom CC instead of Classic on your computer you will see your images show up right away.

Mac systems "hide" the Photos Library from Lightroom. You need to have your camera files in a folder that is visible to Lightroom.

There is some advice in the forums here-

I can't find Apples Photos' library to import into Lightroom 6.

"you can export your photos from within the Photos App. There is a point under File - Export - Export unmodified original. After that you can import them from the filesystem into LR."

and here-

can photos stored in the new Apple Photos be quickly transferred to Lightroom? I am not at all happy with this new apple…

iCloud- I know nothing! (a Windows user)