How does Tennessee Williams use imagery in Sweet Bird of Youth?

Imagery:

"The shutters in the Moorish Corner are thrown open on the Palm Garden: scattered sounds of disturbance are still heard: something burns in the Palm Garden: an effigy, an emblem? Flickering light from it falls on the Princess. Over the interior scene, the constant serene projection of royal palms, branched among stars."

"Princess looks as if she had thrown on her clothes to escape a building on fire. Her blue-sequined gown is unzipped, or partially zipped, her hair is dishevelled, her eyes have a dazed, drugged brightness; she is holding up the eyeglasses with the broken lens, shakily, hanging on to her mink stole with the other hand; her movements are unsteady."