She is standing tall with her back to the light streaming in from the large window. She is surrounded by a cityscape, with tall buildings soaring above her. There is a sense of beauty in the city below her, though some of the colors are muted.
In her right hand she holds a single, small, vibrant red flower, lifting it gently to the sunlight. The warm colors of the flower stand out against her white, flowing dress. A number of shades would be perfect to capture her pose against the city backdrop.
A dark oxide green could form the base for the buildings and the color of the sky. Add a muted yellow for the highlights of the buildings and the light of the windows, highlighting the dark details below. The red flower should be painted using a bold, brilliant red, with a hint of a fuchsia hue to capture its delicateness. Soft shadows of taupe and a smoky brown would perfectly enhance the woman's dress.
Bringing imagination to life, the finished picture will be a stunning visual of this woman and her cityscape.