Affiche d'Action Écolière Mécha avec Katana

Anime action illustration of [a mecha schoolgirl warrior] in a dynamic low crouching pose against a pure white background, framed by a thin red futuristic HUD border with angular corner cuts. The character is a young anime girl with [dark brown] long straight hair, blunt bangs, a white hair clip, large brown eyes, and a focused expression. She wears a cropped white-and-teal Japanese sailor school uniform with a red neckerchief, pleated teal mini skirt, white sneakers, and an exposed midriff. She is equipped with bulky articulated cybernetic armor featuring glossy white and deep teal mechanical forearms, shoulders, thighs, shins, knee guards, and segmented mechanical hands with brass joints, circular pistons, visible screws, and small red technical decals. She holds a long katana vertically on the left side of the frame, one mechanical hand gripping the hilt above her head while the other braces against the ground, with faint motion slash arcs trailing behind her. Clean cel-shaded anime aesthetic, crisp linework, glossy armor highlights, warm skin tones, and subtle drop shadow on the floor. Graphic typography includes three text elements: '[MECHA GIRLS]' in small red lettering at the upper left, '[MECHA GIRL]' along the bottom center border, and '[IONEN]' alongside a circular red emblem at the bottom right.