Closing London Fashion Week, Men's Day is when the nation's menswear luminaries - from established names like Oliver Spencer to current wunderkind JW Anderson - present their collections. We asked Jeremy Langmead, editor-in-chief of menswear website Mr Porter (and former Wallpaper* editor) to cast his expert eye over proceedings. He sent us back this report, with snapshots, wry observations and his personal take on the main talking points both on and off the catwalk.