Create a high-resolution surreal aerial crowd mosaic artwork: from far away it reads as a casual selfie of {argument name="number of friends" default="two"} young women sitting close together at a small café table, one holding a smartphone out toward the viewer as if taking the selfie, the other leaning in beside her. Their faces are intentionally covered by plain soft-edged rectangular privacy blocks in muted taupe. From close up, every tonal area of the image is made from thousands of tiny individual pedestrians seen from above, each person casting a small shadow on a pale off-white ground; the dark hair areas are dense clusters of people in dark clothing, the skin and clothing tones are formed by lighter and colored crowds, and scattered lone pedestrians surround the portrait in the empty background. Include visible café details suggested through the crowd arrangement: a round wooden tabletop, a cup or small drink container near the center, arms, sleeves, long dark hair, and casual striped clothing. Use a top-down orthographic perspective, miniature-human photomosaic style, realistic lighting, soft daylight, subtle long shadows, extremely detailed crowd texture, emotional blend of loneliness and collective presence, no text, no logos, no border. Overall composition should resemble a vertical smartphone selfie portrait while remaining clearly built from countless tiny passersby.