Nice photo. Where did you get it from? From my Instagram (https://www.instagram.com/p/RFx0u-IGFS/?utm_source=ig_web_button_share_sheet) perhaps?
The reason I ask is that it's a photo I took 6 years ago today. There's plenty of photos taken in Heathrow Terminal 5 but that's definitely my photo. Note the person it the yellow & blue top to the left of the photo and the person with the wet floor warning signs underneath the BSOD.