A realistic black and grey Doberman portrait with detailed shading and expressive eyes.

A realistic black and gray tattoo of a Doberman dog on the upper arm. The design features a detailed, lifelike portrait with expressive eyes, pointed ears, and a sleek, muscular neck. The shading emphasizes the contours of the dog's face and body, capturing the breed's alert and noble expression. The tattoo showcases fine line work and smooth shading to create depth and texture, highlighting the dog's fur and facial features.