Exquisite monochrome indigo blue pen line art, Rococo vintage irregular frame, vertical composition with perfectly symmetrical structure. The outline is formed by curly acanthus leaves, slender branches, and foliage. In the center, a swallow with spread wings in flight. Bottom area left blank for cursive English text. Background features a cream-colored specialty paper texture. French pastoral vintage style, elegant and delicate hand-drawn lines, refined engraving texture, vector line art. Strictly blue-and-white color palette with no extra colors, crisp contours, 8K resolution, wedding signage illustration, ample negative space.
