Premium Editorial Split-Canvas Poster

Create a premium editorial art poster for every uploaded photograph, treating each image as its own independent composition and never merging multiple photos together. Use a strict 3:4 vertical format with the canvas split into two perfectly equal horizontal halves: the upper half should remain a faithful, photorealistic presentation of the original image, preserving the subject's exact identity, facial features, proportions, pose, clothing, objects, composition, lighting, shadows, mood, and natural colors, enhanced only with sophisticated editorial color grading and seamless environmental extension where necessary; the lower half should transform the visual story into an entirely different artistic interpretation-a {argument name="art style" default="tiny, carefully composed handmade mixed-media artwork"} centered within expansive {argument name="background color" default="warm ivory"} negative space, occupying no more than {argument name="image scale" default="10-20%"} of the lower section, using expressive ink sketching, layered gouache-like color fields, subtle collage textures, torn-paper edges, imperfect brushwork, visible fibers, soft pigment variations, and charming human imperfections while retaining the most recognizable silhouette, colors, and core visual elements of the original photograph.