Create a handmade watercolor painting of two koi fish in a circular yin-yang inspired composition, maintaining the natural fish anatomy and flow exactly like an original artist-drawn piece. Soft loose brush strokes, organic watercolor bleeding, visible paper texture, artistic imperfections, natural pigment blending, elegant splash details, vintage aged paper effect, muted antique tones with warm orange, faded blue, sepia, cream, and earthy brown. Minimalist Japanese zen aesthetic, authentic hand-painted look, traditional watercolor illustration, rustic and timeless wall art style, premium Etsy best-selling aesthetic for US and UK audiences, high detail, 300 DPI, ultra high-resolution printable artwork."