Woman in Costume Holding Mask at Convention Center: A woman dressed in a costume, kneeling on one knee while holding a mask. The woman's attire consists of a black shirt with long sleeves and a gray collar, paired with black pants featuring a white stripe down the side. She has dark hair styled in bangs and is wearing black shoes. Her nails are painted black, matching her nail polish. In her left hand, she grasps a mask that combines red and white colors, while her right hand rests on her knee. The background of the image appears to be a convention center or event space, with yellow lines visible on the floor. Overall, the atmosphere suggests a cosplay or costume contest setting.
