"Lily's Little Monster Party" is a Halloween birthday party poster with a cute, playful cartoon style. Dripping green and orange rounded 3D letters sit above three smiling monsters, a jack-o'-lantern and candy on a purple night background with a moon, bats and cobwebs. Swap in your own name, age, date, place and extra notes to make an invitation of your own.

Create a finished 2:3 vertical Halloween birthday poster for print and phone sharing. Render only these exact text strings, with correct spelling and punctuation: headline, largest: “Lily's Little Monster Party”; small eyebrow: “LILY TURNS 7”; second-level details: “Sunday, October 25 · 2–5 PM”; next: “Pinewood Park pavilion”; final small line: “Free entry · Costumes welcome”. Use a clear, friendly rounded display style: chunky, bouncy, slightly irregular letters with open counters, thick dark outlines, bright candy-colored fills, gentle cartoon highlights, and only a few small slime drips. Keep the headline clean and highly legible at thumbnail size; do not let effects obscure letters. Set the eyebrow near the top, the oversized two-line headline immediately below it, and a distinct illustration of three cute, smiling little monsters across the middle. The monsters are the scene’s subject, not lettering: one fuzzy turquoise round monster, one small lavender horned monster, and one orange one-eyed monster, waving beside wrapped candy and a little pumpkin lantern. Put all event information in one neatly aligned, high-contrast block below the illustration: date and time first, venue next, cost and welcome line last. Keep generous spacing between title, illustration, and details; preserve at least 7% safe margin on every edge. Ensure headline is the largest element, date and time the next most prominent, and venue immediately readable. Use a festive, playful Halloween palette of pumpkin orange, slime green, spooky purple, turquoise, and warm cream against a deep midnight-purple background. Add restrained pumpkin candle-glow, a few tiny stars, candy shapes, and sparse web strands in the corners; keep decorations away from all text and avoid anything frightening, bloody, or visually busy. Crisp print-poster composition, clean vector-like silhouettes with subtle dimensional shading, soft warm highlights, high contrast, polished illustration.