3 sets of nail art plates, scrapers, and stampers

I bought these several years, but never really got it to work. Only one stamp and one card were used. The other 2 are brand new. All stamps have been cleaned according to instructions. One card has some discoloration, as seen in the second pic (side by side shot done to show difference between new and used). I have also added some additional plates that came from another set. Inside the small Art Screens box, there is another smaller stamper