The Wrong Herring

The school of herrings always swims happily in a very special formation in the same direction and arranged by color. This way they form a large unit and protect themselves from attackers. However, due to some special predatory fish, the herrings have inadvertently changed the formation slightly out of fear.
Help them and find the mistake(s), being careful not to make a mistake yourself, as this could put you out of the game.
Look closely, but don't get confused and always try to collect three herring friends.

Print & Play version: Papierspiele.at

—description from the publisher