Now that we basically have her all nice and colored in, let's merge everything into a Smart Object, rasterize that layer, and then duplicate it. On the new layer, we'll use Filter > Artistic > Post Edges eight the Edge Thickness set to 6, the Edge Intensity set to 4, and the Posterization set to 0.
Utilizing Photoshop's powerful masking capabilities we can add Muriel into the picture and save the day. First off, you need to open the photo in Photoshop. Now you want to analyze the picture to assess the most believable place to set Muriel in the photo. Remember, you want to look for a place in the photo to add Muriel that will look realistic, and not disturb the feeling of the photograph. One you've decided where Muriel should be placed you will need to take a photo of her. Try and match lighting conditions if you, but if this is just not possible I will show you how to fix that with Photoshop. Note the angle of her pose, keeping in mind the place in the photo you will be placing her. Take a few, slightly altering poses and conditions so that you will have a choice when you get back to the computer.
Now let's create another new layer, set the blending mode to Color, and use a skin tone appropriate color to color in her skin. We'll add 2 more layers for her lips and her eyes as well, both using the Color blending mode.