Generate an SVG as a Halloween greeting card illustration. Festive celebratory style. Background fill #080415. Draw a row of 4 colorful jack-o-lanterns at lower canvas — orange (#F97316), purple (#7C3AED), teal (#0D9488), coral (#F97316) variants, each with unique carved face. Add a full moon behind them in pale gold. Scatter colorful star and bat shapes. Add seasonal confetti-like leaf shapes in orange and amber raining. Colorful, festive, theatrical. No text, no labels, no emoji. Output raw SVG code only starting with <svg.

The image shows a group of Halloween pumpkins with bats flying around them in front of a full moon, creating a festive atmosphere. The pumpkins are in various colors, adding to the spooky mood of the image.