Design a bold abstract tattoo for a realistic forearm in natural skin tone. The tattoo should include: Concentric Circles and Spirals: Central concentric circles or a spiral representing the continuous flow of time and life's cyclical nature. The layers should seamlessly blend together. Geometric Timeline: An abstract timeline extending from the circles or spiral, with bold, geometric lines and sharp angles. Include subtle branches with small geometric stars or triangles to represent decisions and directions in life. Abstract Sun and Moon: Abstract sun and moon at opposite ends. The sun should have geometric rays or triangles, while the moon can be a half-circle or abstract shape, symbolizing day and night balance. Cosmic Wave: A flowing wave that moves through the design, interacting with the concentric circles and timeline, merging with small geometric stars or abstract planets. Style: Minimalistic and geometric with bold black and grey lines, ensuring a clean, cohesive look that covers most of the forearm."