Festive Christmas Invitation Poster

Professional Christmas event invitation poster, vertical, flat vector cartoon illustration. [Colors] warm crimson #B3171F to #D8323C, cream #FBF3E4, pine green #1E7A55, mustard gold accents. [Layout] the top forty percent is a dusk-red stage closed off by a scalloped awning edge; the lower sixty percent is a cream card holding a centered stack of a red ribbon banner, three small label rows for time, place and who it is for, and a QR panel, with a candy cane bottom-left and a bell bottom-right. [Typography] heavy rounded sans reversed in cream on the ribbon, charcoal body rows, small gold star dividers. [Subject] a waving Santa in a red suit beside a reindeer in a striped scarf, both flanking a decorated fir with a star topper and candy ornaments, string lights and bokeh dots in the sky. [Lighting & mood] cheerful and warm, flat shading with soft highlight rims. [Details] confetti flecks, dotted bulb garland, matte vector shapes, faint paper grain. Text: "YOU'RE INVITED", "CHRISTMAS TRIAL CLASS", "DEC 25 · 6PM".