This dark, black-and-grey tattoo study centers on Poseidon, god of the sea, depicted as a towering figure gripping a trident and emerging from a wall of roaring waves. The upper body is rendered with muscular realism, while the hair and beard flow into the storm, created with dense line work and smooth gradient shading that blends crisp edges with soft transitions. The waves are built from pattern-driven motion: repeated curl motifs, splashes of white, and negative-space foam that create a graphic texture readable at a distance yet rich with micro-detail on close inspection. The design balances realism in anatomy and lighting with bold patterning, producing a tattoo design that feels timeless and contemporary at once. Black ink dominates the silhouette, with lighter grey tones adding depth to chest, arms, the beard, and the turbulent sea, and white highlights emphasizing spray and crest to punch through the darker areas. The trident stands as a focal point, its tines sharpened and ornamental, anchoring the composition and underscoring themes of power and authority. The overall shape is broad and dramatic, making it an excellent cover-up option for concealing older work thanks to a large dark field and strong contour. Symbolically, Poseidon conveys mastery, protection, and resilience; the waves signify change and continuity, while the trident embodies control and influence. This is an AI-generated tattoo project designed as a pattern-rich black-and-grey tattoo design that can be adapted to back, chest, sleeve, or leg canvases. It speaks to fans of realistic tattoo and black-and-grey body art while offering a clear path for customization, whether one desires a minimalist refinement or a full-scale dramatic piece. The concept aligns with current trends in 21st-century tattoo design, delivering a meaningful tattoo that remains legible in scaling, with room to introduce subtle color accents if desired, making it suitable for both large ensembles and smaller commissions.