There were three categories in 2016: Action, Nature, and Club Card.
Links to the full competition are at the bottom.

Action

Winner: Photo by Gwen, featuring Alie
#2: Photo by Brendan
#3 (tied): Photo by Damon
#3 (tied): Photo by Elliot, featuring Abi

Club Card

Winner: Castle Hill, NZ. Photo by Abi
#2: Photo by Renee
#3: Photo by Tilly

Nature

Winner: Photo by Dominik
#2: Photo by Bayu
#3: Photo by Nicola

Links to the full competition:

Club Card: https://www.facebook.com/media/set/?set=oa.10154098020103635&type=3
Nature: https://www.facebook.com/media/set/?set=oa.10154098014338635&type=3
Action: https://www.facebook.com/media/set/?set=oa.10154098003298635&type=3