Bold freehand brushwork in ink and wash, "Lock Ming" (the red-haired girl with red eyes and twin tails) stands in the center of the picture, her whole body combines machinery and ink wash rendering. The metal lock is outlined with bold square lines, and the ink wash patterns on the robe are rendered with hazy ink tones. Behind her is a huge outline of mechanical gears (outlined with bold round lines), interwoven with scattered ink smudges, forming a unique visual contrast of "the collision of machinery and freehand brushwork".