A fun and engaging cover design for a 3D visualization group in social media, drawn in a hand-drawn colored pencil style. The central focus is a cheerful mouse character working at a desk, with a computer screen showing a 3D project. The mouse is surrounded by scattered sketches, miniature models, and coffee cups, adding personality and charm. The background features a simple gradient or textured pattern, and the group name is written in playful, artistic fonts with the tagline 'Where 3D Ideas Come to Life.