In this picture, we see a couple of large "zebrasoma" fish, and behind them, another couple of "butterflyfish", swimming among many coral reefs.
This picture is related to SDG 14 on "Life Below Water", which states "Conserve and sustainably use the oceans, seas and marine resources for sustainable development". It was captured in the waters of Naama Bay, Sharm El Sheikh, Red Sea Governorate in Egypt.