Split-screen product advertising poster

{"type":"Split-screen e-commerce advertising poster","style":"Premium photorealistic retail marketing graphic, high contrast, refined commercial lighting, clean and bold typography, modern direct-response ad design","canvas":{"aspect_ratio":"4:3","background":"Black outer border, rounded-corner poster design"},"layout":{"orientation":"Vertical split-screen","sections":[{"title":"Left product ad","position":"Left half","count":1,"product":"Backpack","headline_lines_count":2,"cta_count":1,"footer_count":1},{"title":"Right product ad","position":"Right half","count":1,"product":"Smartwatch","headline_lines_count":2,"cta_count":1,"footer_count":1}],"divider":"Centered hard divider line"},"text":{"left":{"eyebrow":"","headline":"","features":"Genuine leather material • 15-inch laptop compartment • Waterproof","button":"Buy Now","footer":"Free shipping • Limited stock"},"right":{"headline":"","features":"Heart rate monitoring • GPS • 14-day ultra-long battery life","button":"Buy Now","footer":"Free shipping • Limited stock"}},"left_panel":{"scene":"Rustic interior setting, warm natural light streaming in from the side","background_details_count":3,"background_details":["Textured wall or wooden interior surface","Window revealing soft greenery outside","Textured floor"],"product":{"type":"","position":"Lower-left center, standing upright on the floor","material":"Rich textured polished leather","color":"Dark brown","details_count":5,"details":["Top handle","Dual-zipper top opening","Large front zippered pocket","Visible side pocket on the left","Structured rectangular silhouette"]},"supporting_props_count":2,"supporting_props":["A pair of dark sunglasses","A small brown notebook placed next to the backpack"],"lighting":"Warm cinematic sunlight from the upper left, creating soft highlights and earthy-toned shadows","button_style":"White rectangular button, positioned at the bottom center of the left panel, with black uppercase text"},"right_panel":{"scene":"Dark studio product shoot with cool-toned moody spotlight","background":"Deep navy blue to black gradient","product":{"type":"Round black smartwatch","position":"Vertically and horizontally centered in the right half","details_count":5,"details":["Round black watch face","Glowing white-purple heart icon displayed in the center of the screen","Dark metal case","Two side buttons visible on the right edge","Fine metal mesh band"]},"surface":"Smooth studio floor with a soft circular shadow beneath the watch","lighting":"Cool-toned spotlight from above and rear-side, creating rim light and dramatic shadows","button_style":"White rectangular button, positioned at the bottom center of the right panel, with black uppercase text"},"typography":{"font":"Bold condensed sans-serif uppercase font","color":"White","alignment":"Centered within each panel","feature_line_style":"Smaller all-caps subheading with bullet separators"}}