Rustic Calligraphy 'Floating Clouds and Flowing Water AI Image Prompt

Commercial-grade handwritten calligraphy work '行雲流水', simple and rustic, thick strokes with retro black-letter clerical script style, font heavy and antique, extremely thick strokes, rich ink texture, using thick block design, irregular edges with wear and mottled effects, presenting an aged texture, characters arranged compactly and unevenly, regular script calligraphy with thick strokes overlapping to form special artistic effect, ultra-clear with sharp edges, dry texture brush, exaggerated brush texture, bold and exaggerated deformations, below there is sparse small English text 'floating clouds and flowing water', bottom has red antique '中国书法' seal, warm cream white background, high-definition details, 8K resolution, master-level handwritten calligraphy art, ultimate composition, cinematic lighting, ultimate pixels, 32K, HDR