Mary Stuart is depicted in a regal, battle-ready pose that conveys both elegance and tactical resolve. The figure wears a richly detailed uniform-inspired outfit with a high collar, ornate gold trim, and a flowing cape that adds motion to the statue. Colors emphasize deep navy, white, and metallic accents, with carefully painted highlights that reveal sculpted folds, lace, and fabric textures. Her hair is styled in a formal updo with delicate accessories, while her stance suggests leadership and readiness. The base echoes Horizon's military-academic aesthetic, tying the character to the series' world while elevating her silhouette as a centerpiece for a collector's display.

Within Kyoukai Senjou no Horizon, Mary Stuart is a charismatic strategist whose noble lineage anchors her courage and resolve. In the series' tangled timeline, she navigates political intrigue and shifting alliances while balancing diplomacy with decisive action on the battlefield and in the academy. This figure captures her poised leadership, the blend of grace and grit that defines her approach to conflict, and her loyalty to comrades she considers family. Her plots involve guardianship of key assets and the defense of allies against rival factions, all shaped by duty, honor, and a willingness to take calculated risks for a greater cause.