detective girl, Jenny Leclue, focused expression, holding a briefcase, intricate lock mechanism, code combination, vintage leather briefcase, brown color, worn texture, brass fittings, standing pose, thinking posture, hand on chin, magnifying glass, clue papers sticking out, cozy office background, bookshelves, dim light, mystery atmosphere, 3/4 view, detailed facial features, curly brown hair, casual detective outfit, knee-length skirt, comfortable shoes, ambient lighting, indoor setting, wooden desk, scattered notes, immersive scene, puzzle-solving action.