Generate an SVG as a Halloween greeting card illustration. Festive celebratory style. Background fill #0E0520. Draw 3 carved pumpkin shapes at lower canvas in bright orange (#F97316), varying sizes. Above them, a large glowing full moon in amber gold (#FCD34D). Bat silhouettes flying across the moon. Scatter colorful star shapes in orange, purple, gold across the canvas. Autumn leaf shapes raining from top. Full, rich Halloween atmosphere. No text, no labels, no emoji. Output raw SVG code only starting with <svg.

The image shows three jack-o'-lanterns in front of a full moon, with bats flying around them and stars twinkling in the night sky.