[DanniK5]

I use ICloud Photo Library on my iphone and ipad but it doesn’t seem like my pictures ever go to the cloud. My pictures are using up a lot of my device storage. How do I move them to my PC and icloud?

[Tartarus]

Go to Settings > Photos and enable Optimize iPhone Storage.
Do the same on other devices if you have more iDevices, such as iPod or iPad.

You simply can’t move photos to your windows computer and expect them to show on your iPhone, that’s what the above setting is for.

If there are photos you don’t want on your iPhone at all, you can visit iCloud.com on your computer and save them to your computer and delete them in iCloud. Photos deleted in iCloud.com will also be deleted from all your devices associated with your iCloud account.