By Hassan Dadashi Arani | Esfahan province. Iran

By Nancy Anders | Natural Bridges State Beach, Santa Cruz, CA

By Patricio Leon | Santiago, Chile

By Sudhir Sharma | Stormville, NY

By Ross Stone | Mono Lake, CA, USA

By Ivy Morrow | Arnold, CA, USA

By Hassan Dadashi Arani | Esfahan province. Iran

By Mohamed Zefzaf | Mashpee, Massachusetts, USA

By Stéphane Picard | Quispamsis, New Brunswick, Canada

By Jelieta Walinski Ph.D | Desert Bloom Observatory, AZ, USA

By Jean Rowsell | Texas

By Sheryl R Garrison | Southern Alberta, Canada

By David Hawkes | South Yorkshire, UK

By Jill Jones | Llandudno, North Wales, UK

By Cecille Kennedy | Oregon Coast, Oregon

By Raul Cortes | Testiota, Sonora, Mexico.