Create a 1:1 square humorous oil painting inspired by the public-domain Mona Lisa composition. Keep the Renaissance portrait mood, sfumato softness, muted earthy colors, aged varnish texture, subtle craquelure, distant landscape background, folded hands and calm enigmatic expression. Add a modern brand-neutral dark cola soda can held naturally in one hand, with a straw reaching to her mouth as she calmly drinks. The can should be red or dark red but use only fictional, unreadable, or abstract decorative markings; do not copy any real beverage logo or trademark. Blend the modern object into the old-master oil-painting texture so it looks amusing but still painterly. Preserve the soft face lighting, gentle smile, dark robe, balanced central composition, and museum-painting atmosphere. Avoid real brand names, recognizable beverage logos, readable product labels, modern photo-realistic packaging, extra text, watermarks other than the Pix2 preview watermark, and disrespectful distortion of the portrait. Output aspect ratio: 1:1.