SCOTLAND: The Big Picture / Scots pine (Pinus sylvestris) with Northern lights / Aurora borealis lighting up the night sky in background, Monadhliath Mountains, Cairngorms National Park, Scotland, UK, October 2015.

SCOTLAND: The Big Picture / View across Sound of Taransay to North Harris hills in stormy weather , West Harris, Outer Hebrides, Scotland, UK, September 2014.

Neil Aldridge / Two Lady's slipper orchids (Cypripedium calceolus) in flower in spring in woodland near Kuressaare, Saaremaa, Estonia.

Niall Benvie / Birch (Betula) at moonrise, Loch Shieldaig, Torridon, Scotland

Niall Benvie / Queen Mary's Tree, a veteran Sweet chestnut (Castanea sativa) over 600 years old, Cumbernauld, Scotland, UK, July.

Niall Benvie / Scots pines (Pinus sylvestris) Torridon, Scotland, UK, November.

Niall Benvie / The Birnam Oak, an ancient English oak tree (Quercus robur) nearly 1000 years old, Perthshire, Scotland, UK, July.

Alex Hyde / Nine-spotted moth (Amata phegea) feeding from a Mountain arnica flower (Arnica montana) Triglav National Park, Julian Alps, Slovenia. July.

Alex Hyde / Fairy's thimble flower (Campanula cochleariifolia) growing in a crack running through a limestone slab. Triglav National Park, Julian Alps, Slovenia. July.

Alex Hyde / Keeled garlic flowers (Allium carinatum subsp. carinatum) flowers on black background, Julian Alps, Slovenia. July

David Pattyn / Alpine ibex (Capra ibex) on a mountain side in autumn with European larch tree (Larix decidua) trees in the back the Alps, Gran Paradiso National Park, Italy. November.

Andres M. Dominguez / Great grey shrike (Lanius meridionalis) perched on a branch of Montpellier maple (Acer monspessulanum). Sierra de Grazalema Natural Park. southern Spain. December.