Take one at a time. Start with the thing on the tower, then the guardian with legs, finally the flying fucker. If you have 4 Ancient arrows left, you can use three in this room. However, you may want to use 2, and save 2 for the next room.
Middle tower has a chest on top with bomb arrows. If you have 5 Ancient arrows left, you can use one on this. As you can see, I took the approach of just using bomb arrows to take out the propellers, followed by standard spin attack weapon attacks.