Off-camera flash and white balance

I once saw a picture by Joe McNally where he photographed a pretty standard office, but played with off-camera flash and white balance. I think the picture was in his excellent book 'The Hot Shoe Diaries'. The woman in the picture was behind computer screen. McNally had played with off-camera flash and with white balance. I decided to create a similar photograph. The first step in the process can be seen below.

The image was created by setting the white balance to tungsten. This creates the blue color cast in the picture. The shutter is set to 1/250s, which almost kills the ambient light. My daughter's face is lit by an SB-800 Speedlight with a difffuser on, which is laying in front of her, hidden by her left arm. ISO is 100, f/4.0.
The image is taken around noon, but by almost killing the ambient light, it gives an atmosphere of the end of the day, with no indoor lights on.

Next step in the process is give my daughter's face a more pleasant tint than the pale blue. To achieve this, I put an orange gel on my on my SB-800, which neutralizes the tungsten white balance for her face. The result is the picture below. Again 1/250s, f/4.0 and ISO 100. Both pictures have been taken with a Nkon D80 and a Nikkor 50mm f/1.8D AF lens.

If you have comments, let me know.