From a window, a doctor observes an elderly woman sweeping pink petals across a courtyard. Beside her, a luminous blue, ghost-like figure of a young girl mirrors the same motion, suggesting a remembered or symbolic vision of the woman’s youth.
If you want a more literary version:
“A doctor watches from a window as an elderly woman sweeps pink petals in a courtyard. Alongside her, a faint blue, spectral figure of a young girl performs the same gesture, as if an echo of her past has taken form.”