Wide banner background for {{brand_or_event}}, themed around {{banner_theme}}. The main visual sits in the {{main_visual_position}} of the frame, and the rest is clean, softly lit, low-detail space, ideal for adding a headline and logo later. Color palette built around {{brand_colors}}, with enough contrast for white or dark text on top. Polished commercial photography look, natural light, shallow depth of field, crisp detail in the focal area, calm and uncluttered overall. Plain surfaces only, with no words, letters, or borders anywhere in the image.