Site images are illustrative and do not depict challenge participants or results.
Smile: Kate Kozyrka — https://unsplash.com/photos/smiling-woman-B41fY4dhX18
Eyes (source retained, not currently used): Luca Campioni — https://unsplash.com/photos/smiling-woman-nt_oOuRObNY
Walking: Sincerely Media — https://unsplash.com/photos/person-in-white-and-black-nike-shoes-R_Vkw9YC_U8
License: https://unsplash.com/license — downloaded 2026-09-08.