A joyful Christmas-themed mobile wallpaper featuring a cheerful Santa Claus, a smiling snowman, and a teddy bear standing behind a wooden sign that reads "Merry Christmas" in bold white letters. Behind them is a decorated Christmas tree with red and gold ornaments, a cozy wooden house with a wreath and glowing lights, and a warm streetlamp. In the foreground sits a small puppy with a blue collar, surrounded by scattered ornaments and snowflakes. The scene is colorful, festive, and heartwarming, with a snowy atmosphere and high-resolution detail suitable for mobile display