Create an anime-style samurai character for a T-shirt design. The samurai should be posed dynamically with a katana, surrounded by cherry blossom petals, all outlined in thick black lines. Use a striking color palette of crimson red, black, and white, with glowing accents on the sword. Include subtle Japanese calligraphy in the background, outlined for clarity. Render the design on a transparent background, ensuring it resonates with teenage boys and allows easy cropping. Deliver as a high-resolution vector file.