Once the cover is sold it will be marked as sold or will be removed from the page and replaced with another one (even if there is more than just one version of the sold cover).
All images I use are royalty free and sourced from services such as Shutterstock or Depositphotos. These are included in the cost of your cover design and it gives you the right to use your cover for sales of up to 500,000 print copies.
Now you can browse through my collection of pre-made covers below.