Pick the wall you're solving, then click each statue to cycle its facing direction (↑ → ↓ ←) until they match the in-game positions. The turn instructions update as you go.
Down = facing front, Up = facing back
Set the statues to their in-game directions.
'Barbarossa's Refuge' has four walls of statues, and shooting one also rotates its neighbours. Enter a wall as you see it to get the shots that leave every statue on it facing forward.