Core characteristics:

• Linework — thick, dark, confident outlines with strong line weight variation; clean but energetic inking

• Coloring (90s/early era) — vivid, saturated colors + soft but high-contrast cel shading; dramatic highlights and rim lighting

• Faces & expressions — large sparkling eyes taking up much of the face, puffed-up / rounded cheeks (very characteristic "puffy cheeks" cute look he helped popularize), small nose, glossy/blushed skin texture, often cute little fangs visible in smiles

• Anatomy & proportions — somewhat exaggerated yet grounded: curvy & voluptuous female figures, emphasized thighs & hips, dynamic action-oriented poses, heavy fanservice elements (cleavage, tight clothing, revealing angles)

• Overall vibe — retro 90s–early 2000s anime feel: energetic, playful, sexy-cute hybrid with a mix of cartoonish deformation and realistic details (hair shine, fabric texture, metallic sheen on mecha/props when present)

Later evolution (2010s+) — more subdued palette, smoother/flowing color gradients, heavier emphasis on thick dark lines, closer alignment to Yoshikazu Yasuhiko realism (especially in Gundam THE ORIGIN work). For classic "Saber Marionette J / Toshinden" Kotobuki flavor, add "retro artstyle" or "1990s anime" tags.

Strength recommendations:

• Classic 90s mode: LoRA weight 0.7–0.9 + "retro artstyle"

• Modern/restrained mode: weight 0.6–0.8, avoid heavy retro tags

This should give strong, recognizable Kotobuki flavor without fighting the base model too much. Enjoy training / generating! 🚀