Use the provided white-background product image as the locked product reference. Keep the two EPI CA yogurt drink bottles unchanged: front orange citrus bottle, rear berry/banana bottle, dark caps, Russian label typography, 85 badges, fruit graphics, bottle proportions, and relative arrangement. Create a square or vertical playful winter product poster in a snowy ski/snowboard style. Use powder snow, a blue snowboard/ski prop, icy foreground framing, and sparkling snow particles. Change the slope curve, snowboard angle, ski placement, snow spray shape, and icy framing from the original. Lighting: crisp cold daylight, sparkling snow, energetic dairy drink mood. Constraints: preserve bottle labels and colors; no extra poster text, no watermark, no border. Avoid: missing second bottle, copied snowboard position, unreadable labels, people, hands, added captions.