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Create a professional high-resolution paint-by-numbers template from the reference photo on a [A4 portrait ratio canvas] with a pure white background. The main artwork must be a clean black-and-white line drawing featuring only black outlines, black numbers, and white unfilled paintable areas. No color, gray tones, shading, textures, gradients, or pre-filled areas in the main drawing. Adaptively convert the reference photo into simplified, fully closed, easy-to-paint regions while retaining recognizable composition, main subjects, and key details. Choose an adaptive palette from 1 up to a maximum of [14 colors], merging similar tones unless distinction is essential. Every paintable region must contain a clearly centered, upright, legible black number corresponding to its assigned color. Dark or black areas from the reference must remain white numbered regions rather than filled black; only minimal fine line details (such as pupils or fine seams) may remain solid unnumbered lines. At the bottom of the canvas, include a neat legend section with the title “Instructions”, the subtitle “Paint the areas with the matching colors.”, and an aligned list of each number used, paired with a small color swatch and the English color name. Swatches appear exclusively in the legend.