This AI-generated tattoo project presents a dramatic black-and-grey portrait of a demon-faced deity rising from stylized ocean waves. Executed with meticulous line work and dense shading, the design fuses a roaring mouth, curling horns, and a flowing beard into a commanding focal point on the skin. The waves swirl with bold contrasts, dot work, and crisp contours that create texture and motion while maintaining readability on a large canvas. Technique emphasizes high-contrast black ink, layered grey washes, and fine line detailing to achieve depth, luminosity, and a sense of elemental power. The composition uses deliberate negative space around the facial features to optimize clarity when ink settles, making it a strong candidate for a cover-up for existing tattoos that require a darker, more dimensional silhouette. The imagery blends mythic iconography with maritime motifs, inviting interpretations of rebirth, resilience, and transformation. The piece speaks to meaningful tattoos and contemporary tattoo design, with keywords such as black and grey, fine line, realistic tattoo, and custom tattoo design woven through the narrative. While rooted in traditional demon and wave aesthetics, the execution reflects modern sensibilities suitable for large-scale body art on the back, chest, or arm. This design excels as a cover-up due to its dense shading and bold composition, offering longevity and legibility even as skin ages. As an AI-generated tattoo project, it demonstrates how digital concepts can translate into tattoo-ready art, reinforcing the appeal of tattoo design that is both dramatic and meaningful for ink enthusiasts who appreciate fine-line precision, pattern, and the dynamic energy of nautical influences.