A bold geometric abstract hot air balloon festival composition featuring oversized balloon silhouette forms, angular tether and pavilion structures, and cascading sunrise light rays in explosive electric magenta, bright festival gold, and deep twilight purple against deep dawn coral and morning mist white, transparency overlays creating celebratory aerial depth, Bauhaus-inspired balloon meet layout with clean vector edges on textured aged vintage postcard paper, sharp hot and cold color contrast, joyful festive aerial mood, sharp angular balloon edges meet curved flowing cloud movements, dramatic warm sunrise glow meeting cool shadowed ground darkness, modernist poster aesthetic meets international ballooning heritage, whimsical yet majestic, hot air balloon festival captured in geometric precision