A painterly, atmospheric depiction of a grand, slightly decaying Art Nouveau building in Bucharest at dusk. Imagine warm, muted light spilling from ornate windows, casting long shadows. The building's architecture should be detailed, featuring wrought-iron balconies and elaborate stonework. In the foreground, a single, silhouetted figure, perhaps a young woman with flowing hair, stands looking towards the building, conveying a sense of mystery and longing. The color palette should be rich with deep indigos, ochres, and muted golds, evoking a sense of nostalgia and faded grandeur. The overall mood is melancholic yet alluring, with a touch of intrigue. The composition should be centered, drawing the viewer's eye to the building and the solitary figure, creating a sense of depth and narrative. Square 1024x1024 format.