That’s a great question and the answer is a bit personal for me.
I’m a gay scientist, and while I’ve been really lucky to work with people who are extremely accepting and supportive, one problem I’ve had is that you can often feel like there’s no role model for you to aspire to. There are lots of scientists from different countries etc. but as a minority you can struggle to relate someone or even say “Oh that could be me in 5/10 years”.
Thankfully I’m not alone in this. I even helped put together a conference for gay scientists back in January that you can read more about here https://lgbtstem.wordpress.com/
I think setting up and publicising a photo shoot to find and show off role models in Science from minority communities is a good idea because it showcases that there are role models out there for us we just need to look a bit harder for them.