Visualize a young woman in a vibrant, flowing Balenciaga gown, as she wanders through a magical forest of giant, luminescent mushrooms, in a fantasy illustration style. The composition is an extra long shot that captures her full figure amidst the gigantic forest elements. Let the aesthetics revolve around fantastical colors, shimmering lights, and oversized forest elements. Illustrate this with the artistic brilliance of Bert Stern, ensuring UHD quality and the interplay of light and fantasy. --ar 9:14 --style expressive --s 180 --v 6.0