A bold and extensive abstract tattoo design on a realistic forearm in natural skin tone, featuring a cosmic time theme with thick black and grey lines. The design includes large concentric circles and spirals representing the infinite passage of time, covering a significant portion of the forearm. Geometric patterns such as triangles, hexagons, and stars are integrated, branching off from a central timeline with strong, solid lines and smooth fades to create depth. An abstract sun and moon are incorporated, with flowing black and grey shading that blend into the surrounding design. A powerful cosmic wave flows through the entire composition, filling the space with dynamic shapes and fading elements, all in black and grey ink. The tattoo is depicted on a forearm with natural skin tone, showcasing the contrast and detail."