Orsolya Haarberg / Aerial view of sporadically inhabited islands, islets and skerries in a wide coastal plain. Husvaer, Helgeland Archipelago, Norway. July.

David Allemand / View of sand dunes, Walvis Bay, Namibia, Africa

Oriol Alamany / Acacia trees below a sand dune in Tscauchab valley, Namib-Naukluft National Park, Namibia, October

Oriol Alamany / Alpenglow at sunset in the Spitzkoppe mountains, Damaraland, Namibia

Rhonda Klevansky / O'Higgen glacier ice seen from O'Higgens Lake. Bernado O'Higgens National Park, Patagonia, Chile. January 2017.

Danny Green / Aurora Borealis above silhouetted trees, northern Finland, March

Shane Gross / Aerial view of the rock islands, Palau.

Georgette Douwma / Kaleidoscopic image of Brittlestars. Indonesia.

Georgette Douwma / Kaleidoscopic image of autumn leaves. UK.

Georgette Douwma / Kaleidoscopic image of autumn leaves. UK.

Georgette Douwma / Kaleidoscopic montage of petunia flowers.

Guy Edwardes / Long exposure of Hraunfossar in autumn, Hvita River, Iceland