A square colored-pencil and crayon poster preserving Hagia Sophia, Galata Tower, the Bosphorus, and exactly three boats.
1Create a 1:1 Istanbul skyline poster from the supplied source artwork. Preserve the source asset's square white border, centered eye-level wide composition, building layout, geometry, proportions, colors, paper grain, visible pencil strokes, and cheerful flat lighting. Keep Hagia Sophia and the second mosque with blue domes and terracotta-orange walls, Galata Tower, the blue Bosphorus, exactly three small boats, a light-blue sky, simple white clouds, a bright yellow sun with radiating rays in the upper right, small V-shaped birds, green foreground flowers, and sharp hand-drawn lines. Show no visible people. Reserve one clean blank header strip for the exact copy İSTAN BUL to be professionally post-typeset after generation. Do not ask the image model to reproduce any source text or marks. Generate no text, letters, logos, brands, signatures, or watermarks, and do not add objects, crop, reframe, shift the palette, introduce dramatic effects, or alter the Istanbul landmarks or exactly-three-boat count.
