Princess Usagi Small Lady Serenity, as depicted in the Gekijouban Sailor Moon Eternal line, is presented in a soft pastel palette characteristic of Q Posket figures. The figure stands gracefully with a poised stance, one hand gently lifted and the other at her side, conveying regal presence. Her long pale pink hair flows in elegant waves around a delicate crown, and she wears a flowing gown with layered skirts and subtle sparkles that catch the light. The sculpt emphasizes refined details such as the graceful curve of the waist, the draping of fabric, and tiny jewelry accents. Paintwork is crisp with gentle shading to highlight folds and the translucent quality of any cape or veil. The base remains unobtrusive, featuring moon motifs and a soft gradient to keep the focus on the character. Overall, the piece exudes dreamlike charm and captures the Eternal film princess aesthetic in a compact, display friendly form.

In the Eternal film inspired story, Small Lady Serenity embodies the Moon Kingdoms beauty and the hopeful future she represents. The character stands as a bridge between memories of Serenity and the courage of Usagi to protect loved ones here and now. She personifies grace, leadership, and the duty that comes with royal lineage, while still carrying the warmth and compassion that define Usagi. Her presence reinforces themes of friendship, perseverance, and the power of love to illuminate darkness. Through her gentle demeanor and inner resolve, she inspires the Sailor Guardians to stay true to their mission and to believe in a brighter tomorrow for their world.