Backstage at Preen at London fashion week – in pictures

Backstage at Preen by Thornton Bregazzi at London fashion week day 3. Justin Thornton and Thea Bregazzi's A/W14 kicked off day three of London fashion week -  metallic parkas and printed dresses, and if you look closely you may spot a hidden Darth Vader amongst the gorgeous prints. The Observer's Jo Jones took these exclusive pictures of the preparations beforehand, where storm troopers and models hung out side by side. Photograph: Jo Jones/Observer

Backstage at Preen by Thornton Bregazzi London fashion week day 3 Photograph: Jo Jones/Observer

Backstage at Preen by Thornton Bregazzi at London fashion week day 3 Photograph: Jo Jones/Observer

Backstage at Preen by Thornton Bregazzi London fashion week day 3. Storm troopers and models hang out side by side. Photograph: Jo Jones/Observer

Backstage at Preen by Thornton Bregazzi London fashion week day 3 Photograph: Jo Jones/Observer

Backstage at Preen by Thornton Bregazzi London fashion week day 3 Photograph: Jo Jones/Observer

Backstage at Preen by Thornton Bregazzi at London fashion week day 3 Photograph: Jo Jones/Observer

Backstage at Preen by Thornton Bregazzi London fashion week day 3 Photograph: Jo Jones/Observer

Backstage at Preen by Thornton Bregazzi London fashion week day 3. Storm troopers and models hang out side by side. Photograph: Jo Jones/Observer

Backstage at Preen by Thornton Bregazzi at London fashion week, day 3 Photograph: Jo Jones/Observer