iCloud Photo Sharing to myself

So I have a very large photo library that I've been up keeping since the iPhoto days. It's huge and belongs on a hard drive and would be a ludicrous waste of cloud storage, bandwidth and mobile phone data to store it in iCloud.

On the other hand, things like photos of receipts, frequently referenced stuff, photos from the last few months etc I'd love to have in the cloud and accessible from all my Apple Devices.

So I've created some shared libraries that I can share to other people and quite appropriately live in iCloud, but they only show up in the Photos app on the device that I created them in. Surely I should be able to see these in any Photos app linked to my Apple ID? I've even tried sharing these to myself but it doesnt work. I have iCloud Photo Stream and iCloud Photo Sharing turned on on all my devices.

Whats up with this?