By Carol Cambareri | Presidio

By Cecille Kennedy | Rocky Creek State Park Oregon US

By Vernon Anderson | Silver Spring MD, USA

By Amy Spencer | Silver Spring, Maryland

By Amitava Chatterjee | Kolkata, West Bengal, India

By Radu Anghel | Bacau, Romania

By David Byers | Arches National Park

By Luca Balestrieri Cosimelli | Sutri, Italy

By Jessica Asch | Edgewood, KY, Kenton

By Jonathan Razo | San Francisco Bay Area

By Kannan A | Singapore

By Asha Prasad | Saint Paul, MN, USA

By Sohil Pothiawala | Singapore

By Lorraine Boyd | Clifton Park, NY

By VALERIE K | Annapolis, Maryland, USA

By Gerald Tan | Woodlands, Singapore