This is a powerful, image-driven prompt. To turn "the day my mother made an apology on all fours" into a good feature (whether a short story, a film scene, or a personal essay), you need to move from shock value to emotional resonance. The "better" version will answer why this happened, not just that it happened.
She wasn’t kneeling in a posture of prayer; she was on her hands and knees on the worn hallway carpet, her head bowed so low her forehead almost touched the floor. In her right hand, she held a plastic dustpan. In her left, a damp paper towel. the day my mother made an apology on all fours better
Her forehead touched the floor.