Ran out of gems after three prompts...

Keep the main girl exactly as she is in the original image - do not change her eyes, hair brightness, skin tone, or any features. ONLY modify the reflection on the mirror surface below her. Make the reflection a photo-negative style inverted image: her skin in the reflection should become shades of black and dark gray, her silver hair should become black and dark tones, and her eyes should be dark with the pupils appearing as pure glowing white. The reflection should look like a beautiful inverted monster version - dark where she is light, creating a haunting mirror doppelganger effect. Do not alter the main girl at all - only the reflection.