For this photo on photoshop i used the sponge tool to take out the colour of the skin to make her look more dead with gray skin. Then i used the burn tool to darken the colour of her lips and around her eyes to define them. Next I used the magnetic lasso tool to select her teeth then i used the warp tool to change the shape of the tooth so that they are more sharp like fangs and then selected the eyes and the hue/saturation tool to change the colour of her eyes.