It is best practice to track images used in curriculum. Use the tracking sheet provided here:
is also available on The Q.
Includes:
You may choose to use media (images, recordings, etc.) that you have personally captured.
If said media involves another person, you must have them complete and sign a Consent and Release Form.
The onus is on you to collect and save the completed form.
Using images in curriculum aligns with UDL and as such, you are encouraged to do so. However, images must be used lawfully and it is a best practice to track the images used.