There is not a mandatory format for IEEE Day photo submissions. You just need a photo that shows you in action, where IEEE is somehow present.
We decided to post an example photo just to help you come up with ideas. Don’t feel bound in any way by its setting – you have full creative freedom.
The photo shows the IST Student Branch team (Bruno Gonçalves, Diogo Mónica, Jacqueline Jardim, Jorge Soares) doing some Communication Networks Engineering. Thanks for the example!