Fei Fei and Gobi in a fantastical city in space HD Wallpaper

A young girl named Fei Fei, wearing a backpack, stands on a green surface and looks out at a colorful, fantastical city in space. The city is built on a rocky island and is illuminated by a bright yellow castle-like structure. Small, whimsical figures are visible on the green surface in the foreground.