Which sentence should be revised to include vivid imagery?
1 The walnut clock's little brass pendulum gleamed, flicking back and forth with each second.
2 "I am never using red paint again," Shula muttered, slapping a sixth, streaky coat onto the wall.
3 She opened the curtain and looked through the window before shutting it immediately.
4 Pungent sweat dribbled into Jana's eyes as she ran, making them sting and itch.