A detailed Japanese full back tattoo design featuring a…

A detailed Japanese full back tattoo design featuring a fierce Hannya mask in the center of the back, with gold eyes and red tones, surrounded by dynamic waves and swirling wind bars. A coiled black and red snake wraps around cherry blossoms on the left, and a koi fish swims upward behind peonies on the right. Subtle smoke and fire in the background. Traditional irezumi style, highly detailed, bold outlines, rich colors, balanced composition, mystical atmosphere, on a neutral background for stencil clarity.