WES Biennial Photography Competition 2013

In background on WES 2013, the World Engineers' Summit (Singapore, Marina Bay Sands Convention Center, from 9 to 15 September 2013), the biennial exhibition of photograpy has is organized by The Insitution of Engineers of Singapore, jointly with The Photographic Society of Singapore. The exhibition is themed "Environmental Sustainability - The Challenges".
I feel proud to enter in this biennial with two photographs, one of which is rewarded.