Create a vintage poster, "Slash" playing a guitar, with soft tones

Create a vintage poster, "Slash" playing a guitar, with soft tones, no background, using nostalgic illustration techniques. A retro design in an old typography and worn textures." The-shirt vector, 2D art, vector; Shading and gradients, Art Nouveau, vibrant colors and synthwave. Vector design, thin lines, central composition, soft background, palette (dark blue , orange, red, olive green), watercolor logo style with printed effect, monochrome background, from yukisakura, with original and incredible colors.