While we were on the runway awaiting takeoff, I'd noticed the lit-up wingtip and its watery reflection along the flat of the wing. I had to wait till we were in the air and given the 'ok' to use portable electronic devices before I could pull out my camera and take the photo I wanted, and I'm glad I did so right away, as the wing lights were only left on for the very first several minutes we were in the air.