Always amazing to see accessibility in practice!
Just to add with pride another fantastic resource is how to inclusive in alt text: www.makethingsaccessible.com/guides/alter...
"Racial ambiguity" is something I struggle with since a) b&w photography can make it even harder to discern skin tone and b) most of the images I post are of people who are anonymous so I have no way to try to confirm their racial heritage. I just do my best to be mindful and respectful. ☹️