Cozy Christmas Phone Wallpaper Scenes

A prompt for a cozy christmas phone wallpaper in Gemini (Nano Banana 2) for your lock screen, a festive home screen or matching holiday wallpapers to share with family. It makes a vertical 9:16 photo of a Christmas room glowing under warm string lights, with soft golden bokeh and a frosted window, and keeps the upper third dark and calm so the clock stays readable. Swap in any scene, from a tree corner to a fireplace mantel, and pick the shadow colour.