How can I get my wife's photos from iCloud to sync to our mac Photos account?

So my wife and I currently share the same iCloud storage of 2TB. She has photos that go all the way back to 2013 and we are trying to sync them to my mac. I currently use the same shared 2TB iCloud storage and it syncs all of my photos flawlessly to my mac. She has iCloud photo sharing on her phone, but how can I get all her photos to sync to Photos on my mac?

We also have family sharing on and we are both listed. See screen shot below. What am I missing?

Thank you all for your assistance in advance. I tried searching with no luck.

[Image Edited by Moderator to Remove Personal Information]