"Leo's Monster Bash" is a Halloween birthday invitation for a child turning 8, in a playful cartoon style. Orange outlined letters sit above a fuzzy purple one-eyed monster and an orange monster cake on a dark purple background, with party details centered below. Swap in your own name, age, date, time, venue and RSVP details to make an invitation for your own party.

Create a finished 3:4 portrait Halloween-style birthday invitation for a child, designed to print as a 5 × 7 inch card and remain readable as a phone image. Keep all text and key artwork within an 8% safe margin. Use one consistent playful-spooky register for children: no gore, blood, frightening horror, or extra text. Render these exact lines, with the stated hierarchy and spelling: Headline: “Leo's Monster Bash” Subhead: “Leo turns 8!” Details, stacked and easy to scan: “Saturday, October 17” / “1–4 PM” / “Jumpzone” / “Costumes welcome” / “Monster cake and a candy hunt” / “RSVP to Sam by October 10” Set the headline in custom chunky, rounded display lettering with broad counters, soft irregular terminals, tight spacing, and a slight hand-cut wobble. Give the letter faces warm pumpkin-orange enamel, a thick deep-purple extruded edge, and a fine cream highlight; keep every letter crisp and fully legible, with no drips obscuring the words. Set the subhead in bold cream rounded sans lettering. Set the details in clean, sturdy cream sans lettering, large enough to read at arm's length in print; use consistent line spacing and clear separation. Composition: centered poster layout. Place the headline across the upper 22% of the canvas, subhead directly below. In the middle, show a friendly illustrated purple one-eyed monster beside a small orange-frosted monster cake, with wrapped candy pieces and a few candy shapes suggesting a hunt. Keep this scene secondary to the lettering and clear of all text. Stack the details in a centered block across the lower 30%, with the RSVP line last and distinctly readable. Add only a few small stars, candy dots, and rounded bat silhouettes as corner accents; preserve open space around the details. Use a near-black aubergine background with subtle printed paper grain, pumpkin orange, vivid purple, warm cream, and a small amount of lime green on candy accents. Soft warm spotlight behind the headline, restrained purple rim light on the monster, clean edges, polished dimensional illustration, high contrast, print-ready. Do not invent additional wording, dates, times, addresses, or logos.