April 2015 Weekly Winning Photos, by Mahfuzul Hasan Bhuiyan, Mitja Kobal, Abhishek Guha Thakurta and Shibasish Saha, Angkor, Cambodia, Fuerteventura, Spain, Bay of Biscay, Kolkata, India, Canon EOS 5D Mark III, Canon EOS 5D Mark II, Nikon D90 and Nikon D7000