"Happy Halloween" 是一张复古风万圣节问候海报，画面如同装在磨旧镀金画框里的老油画。月光下的南瓜地里，一只友善的床单幽灵坐在发光的南瓜灯旁，背景有农舍和满月，顶部是奶油色维多利亚衬线大写字母堆叠排列。你可以替换问候语、姓名或派对信息，制作自己的万圣节贺卡或邀请函。

Create a finished 9:16 phone lock screen wallpaper, composed as an antique oil painting found in an attic. Render the exact headline “Happy Halloween” near the top, centered and clearly legible. Use upright Victorian fairy-tale display serif lettering: confident thick main strokes, fine gleaming hairline serifs and crossbars, sharp slightly pointed bracketed terminals, subtly extended letterforms, and restrained ornamental flourishes on the capitals. The font reference specifies no material, so the letters are painted in aged warm ivory with delicate muted-gold highlights, fine cracked paint and yellowed varnish, matching the antique oil-painted world. Below the headline, let a moonlit pumpkin patch fill the scene: irregular rows of ripe pumpkins, curling vines and a few autumn leaves in the foreground; a friendly small sheet ghost among the pumpkins as the focal character; distant dark field and low silhouettes beneath a large pale moon. Use subdued pumpkin orange, deep brown-black, antique cream, olive green, and faint old red. Moonlight softly edges the ghost and pumpkin ridges; a tiny candle-like warmth glows within a nearby jack-o’-lantern. Keep illumination painterly and restrained, never neon. Show visible brushwork, cracked oil paint, yellowed varnish, softly worn canvas and a chipped, aged gilt frame around the painted scene. Preserve clear contrast behind the headline and generous uncluttered space around it. The painting is the subject, not a modern graphic or flat printed decoration. No other text, no contemporary objects, no extra lettering.