Merry Christmas Promo Poster

Professional Christmas promo poster, vertical, cheerful flat-vector cartoon illustration. [Colors] Forest green #1E5B4A meeting crimson #D3282F along a soft hand-painted diagonal wave, cream #F6EDD9 and gold #E0B25C accents. [Layout] Split field, green upper-left and red lower-right, with a centred headline lockup, a gold ribbon banner, a price-plate strip beneath it, then a code block, and a bottom stage of trees, gifts and characters. [Typography] Rounded bold sans for the headline, tracked-out small caps for the kicker, chunky display numerals inside the price plate. [Subject] A little girl in a mustard dress strumming an acoustic guitar while a waving Santa and a reindeer mascot celebrate beside two decorated trees and stacked presents. [Lighting & mood] Bright flat colour, sticker-like, no gradients, playful and friendly. [Details] Firework bursts, snowflake confetti, folded ribbon banner, light offset-print grain. Text: "MERRY CHRISTMAS", "600 OFF", "16 LESSONS".