Scorpionfish (Scorpaenopsis sp.), Puerto Galera, Mindoro, Philippines
With their ridged and spined head, back and fins, scorpionfishes are real artists of camouflage. They are not aggressive, but they will erect their dorsal venomous spines if they feel threatened.
Olympus OMD EM5 MkII, Zuiko 12-50mm Lens in Macro mode, Nauticam Housing, Dual Inon Z-240 Strobes. Settings 1/125, f/10, ISO200