Library of stylized pictures?

Often see some very cool stylized pictures used within Journeys tiles, Oracle websites, and also a variety of Oracle email correspondence - some examples of which in the attached.

Question: Is there a 'ready made' library of these stylized pictures?

I think familiarity and recognition of the style would help provide an great user experience, maintaining a consistent feel for the Oracle product.

Hope is to select from a library source to apply pictures within some of our Oracle apps that use tiles, such as Journeys and Learn - and also areas outside of the Oracle system e.g. Intranet, Teams apps.