A Halloween geometric pattern concept on a square frame: a deliberate, evenly spaced layout of simplified pumpkin cross-sections alternating with open crescent slices on a deep indigo-plum ground, creating a strict two-color geometric rhythm. The cross-sections are flat concentric rings — an outer rim circle, an inner flesh ring, and a small seed cavity — drawn as simple geometric shapes; the open crescent slices arc between them, alternating so cream shapes and warm amber shapes swap places in an ordered staggered rhythm. No faces on any pumpkin shape, and no extra symbols — only cross-section rings and crescent slices. Flat matte gouache-style fills with softly irregular hand-painted edges, a fine subtle paper-grain texture over the ground, and a limited palette of deep indigo plum, warm cream, and amber. The motifs sit in a loose staggered grid with even gaps, arranged deliberately so the layout reads as a repeat-layout study that could be extended outward. Every motif is fully visible and complete: the topmost and bottommost rows sit well clear of the top and bottom edges, every shape near the left and right edges keeps clear distance from the border, and all four borders remain uninterrupted indigo-plum ground with no motif, ring, arc, or dash touching, entering, or crossing them — nothing cropped by the frame. No lettering, numbers, or writing anywhere; every surface plain and unmarked. Original simplified pumpkin geometry only, with no brand, logo, or franchise character. Square 1:1 frame.
