Free art in public domain: Woman in a Red Hat and Purple Dress.
No Attribution Needed.
Description: Watercolor with gouache by dkp. Frontal view of face. Blonde woman with blue eyes. Red Hat and Purple Dress, Purple Collar. Woman in a Cloche. Cloche Hat. Red Cloche. Seagreen background. Gentlewoman. Woman with Kind Expression. Senior Citizen. Elderly Lady. Middle-Aged Lady. English Woman. American Woman. Brushstrokes. Painting Technique.
Attribution is not required, but if you really want to put it, just use "Courtesy of dkp" or something like that. (I am the artist, dkp, and I have the right to put this art in the public domain).