how do I move PC folders with pictures to iCloud

I have 150 GB of photos on my PC. All grouped in various folders. I want to have everything in the iCloud, but not just in one big stack. I had hoped that my folders would become iphone "albums" so I would have the same organized way to look at the pictures from the iphone. Tried now for 2 weeks, but I don't seem to be able to find out how it is done. Can anyone help, pleease, Martin