As you can see here, I have used 127.8 of 128 GB on my iPhone:

But only 1% of photos are uploaded to iCloud Photos, as you also can see in the picture above. Why is that?
I have a lot of free iCloud space:
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And I have enabled "iCloud Photos" and "Optimise iPhone Storage":
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Shouldn't my pictures be uploaded now to iCloud and shouldn't I get more available free space than what I have?

But only 1% of photos are uploaded to iCloud Photos, as you also can see in the picture above. Why is that?
I have a lot of free iCloud space:

And I have enabled "iCloud Photos" and "Optimise iPhone Storage":

Shouldn't my pictures be uploaded now to iCloud and shouldn't I get more available free space than what I have?