Prompt code:
A vibrant and whimsical illustration featuring six unique, abstract portraits crafted from simple shapes and lines. Each portrait exudes a playful energy and possesses its own distinct personality. The cheerful color palette, including bright hues of black, red, and white, creates a sense of movement and harmony. The vintage-inspired vector t-shirt design, initially a pencil sketch, is meticulously rendered in ink, evoking the essence of a timeless, black and white background.
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