Portrait lighting: Which direction is the light coming from? 
 

   
1. The lighting in image one is coming from the left side of him, which is why you can see the shadow on the right side of his face

 2. The lighting in this image is coming from the right side of his face slightly from above which is why you can see the shadow on the left side of his face. 

3. The lighting on this image is coming from the centre but more of the right side of her face and slightly from above which is why there is a slight shadow on the left side of her face but not fully. 

4. The lighting in this image is coming from the right side of her face and also lighting from behind as you can see the outline of her hair. You see the lighting is from the right side of her face as you can see the shadow on the left side of her face. 

  5. The lighting from this image is straight ahead from where he's looking towards the camera, we know this as there are no shadows on his face at all.