Geometric shapes with shading and line accents in a horizontal row

This tattoo features a series of four geometric shapes arranged horizontally along the upper arm. The first shape is a black-outlined equilateral triangle with a solid black fill, slightly shaded to give a sense of depth. The second shape is a similar triangle, but with a hollow outline and no fill, creating a contrast with the first. The third shape is a square with a bold outline and a shaded fill that transitions from dark to light, giving it a three-dimensional appearance. The fourth shape is a circle with a thick outline and a solid fill that has a subtle gradient, making it appear slightly raised or spherical. Thin lines radiate outward from each shape, adding a subtle starburst effect that enhances the overall design. The tattoo has a clean, modern, and minimalist style with a focus on geometric precision and shading for depth.