Opulent grand halls, symmetrical floor plans, majestic staircases, ornate chandeliers, gilded mirrors, lavish furnishings, rich velvet fabrics, intricate moldings, frescoed ceilings, dramatic lighting effects, sense of harmony and balance, classical proportions, 1/1 composition, central axis alignment, bilateral symmetry, radial symmetry, grand entranceways, imposing columns, decorative arches, solemn atmosphere, historic European palaces, royal courts, monumental architecture, high-contrast chiaroscuro.