“Sumi Practice WEEKLY CALLIGRAPHY CLASS SHODO · INK · FORM SATURDAYS · 10:00–11:30 AM COMMUNITY ARTS STUDIO · ROOM 4 BRUSHES & WASHI PROVIDED”是使用 FontVibe AI 创作的日本水墨毛笔文字效果。把日本书道的水墨毛笔笔法用到拉丁字母上。浓黑的墨汁配上地道的毛笔笔势、单向可控的运笔，还有和纸的质感。做日料店品牌、纹身设计、动漫、武道和文化类项目都特别合适。

Create a finished vertical promotional poster for an ongoing shodo calligraphy class, in a 3:4 aspect ratio. Render only the following exact English text, with no extra lettering: small top eyebrow “WEEKLY CALLIGRAPHY CLASS”; dominant headline “Sumi Practice”; supporting line “SHODO · INK · FORM”; detail lines “SATURDAYS · 10:00–11:30 AM”, “COMMUNITY ARTS STUDIO · ROOM 4”, and “BRUSHES & WASHI PROVIDED”. Set the headline in master-level Japanese shodo brush lettering: upright, harmonious Western letterforms with a bold 5:1 thick-to-thin stroke ratio, gradual loaded-brush entries, deliberate energized middles, and precise harai tapers or hane hooks. Each stroke appears once, with no sketching or doubled marks. Dense matte sumi-black pigment at stroke centers transitions to soft gray at depleted edges; show subtle dry-brush texture only along the outermost stroke edges. Keep generous, clear letter spacing. Set the smaller supporting copy in crisp, restrained dark charcoal print, distinctly subordinate and easily readable. Use warm cream-white washi paper as the full background, with visible fine paper fibers and naturally softened ink edges. Soft diffuse overhead north-facing studio light; even illumination with no hard cast shadows. Compose with ma-style negative space. Place the small eyebrow near the upper center, the large headline centrally beneath it, and the supporting line below the title. In the lower-middle area, show a real black-bristle calligraphy brush resting diagonally beside a shallow dark ceramic inkstone and a small practice sheet bearing only unlettered black-to-gray brush strokes. Keep props secondary and contained, not competing with the headline. Align the three practical detail lines in a compact, centered block near the bottom with comfortable line spacing. Restrained palette of warm washi, sumi black, and ink gray. Flat poster artwork, clean margins, high legibility, no border, no additional symbols, no decorative embellishments beyond the brushwork and paper fibers.