Does anyone know what ep is this pic from?

Either it's fanmade or it's just a picture; that wasn't in an episode.

if u look closely at the picture it says gauken hetalia on it so that must mean its a photo from the game XD

It's just official art associated with the game "Gakuen Hetalia", surrounding Seychelles. The pic in the top right must be a drawing from an event in the game..