In these last steps, the download process gets a little more tedious (sorry, I don't control this part):      

      - click on the picture set you want    

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       - a colorful window is going to pop-up (hence its' name "pop-up"): click on "see photos"      

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      - finally you'll have reached the right page; look down at the lower left section of the page, you'll see a download icon* appear;        

       *          : download icon

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      - click on this icon to activate the download to your computer a ZIP file containing the pictures... Phew!