Recently (well not that recently actually!) BioMed Central Ecology announced the winners of the 2017 image competition. This year 32 images made the cut to be mentioned in the editorial piece here - https://doi.org/10.1186/s12898-017-0138-8. Of this number there were 7 runners up, and just one image named 'overall winner'.
Crowned overall winner. Podocnemis expansa. “The Giant South American