Artwork is last panel shows the detective about to be hurt when the slide of her pistol comes back and hits her thumb. New shooter mistake to have left hand thumb across the back of the pistol. When the slide comes back, it likely will catch her thumb and do some damage. In this artwork the slide sits too high to do that but in real life, you would not want to hold the gun like that while shooting.
Artwork is last panel shows the detective about to be hurt when the slide of her pistol comes back and hits her thumb. New shooter mistake to have left hand thumb across the back of the pistol. When the slide comes back, it likely will catch her thumb and do some damage. In this artwork the slide sits too high to do that but in real life, you would not want to hold the gun like that while shooting.