Generally, the people pictured in any photo linked from here have given their permission for it to be shared.
https://www.sheffieldhackspace.org.uk/the-space/
More available on request: https://photos.app.goo.gl/7yoccfHkAeurFDwa8
alifeee: https://photos.app.goo.gl/5EXpdN6vJ14TBZpz7
blog: https://www.harlandworks.co.uk/repair-cafe
https://downpour.games/~alifeee/what-s-inside-sheffield-hackspace