Teachers Pay Teachers items may NOT be placed/shared/linked on public facing sites such as your website (GCS or Personal). Yes, even if they paid for the resource. It is a violation of their Copyright Laws and Fair Use Policy as well as their Terms of Service:
"Unless otherwise expressly permitted by the Seller:
- You may not post or otherwise make the Resource available on any website.
- You may not share, send, sell, sublicense, or transfer the Resource to someone else for their own Personal Use unless you purchase an additional license for each additional educator you will share it with. Each Individual License is for use by one specific educator only."
Images found through an internet search are not "free and available" for use unless filtered as such. Please, if you have not already, provide professional development to your staff (and students) on where and how to find photos that are not violating the law.