draw this anime-style poster featuring several young, cute pandas in military uniforms, with one holding an extra-large black samurai sword, standing next to giant mecha Gundam robots on top of desert ruins. The background includes mountains and a Japanese countryside, in the style of Hayao Miyazaki's animation and Makoto Shinkai's color scheme. The image is in ultra-high definition resolution with high-quality details, exquisite facial features, full-body portraits, and detailed character illustrations. --ar 7:10 --sref <https://s.mj.run/5CJMBfh0mYw> --niji 6