Create a serene and peaceful wallpaper for a MacBook featuring a lone samurai st

Create a serene and peaceful wallpaper for a MacBook featuring a lone samurai standing in a tranquil Japanese landscape. The scene should include a calm river reflecting the full moon, surrounded by cherry blossom trees with deep, rich petals, and mist-covered mountains in the background. The samurai, dressed in traditional armor with a katana at his side, should have a calm and meditative expression, standing still as if in harmony with nature. Use a warm color palette with deep reds, oranges, and dark browns, avoiding any overly bright or light colors, to create a soothing and atmospheric ambiance.