I agree with David. I also have a suggestion. I'm guessing the yellow tint in your photo was not the actual color, probably due to the type of lighting used. Photo in natural light if possible but when not possible most digital cameras have a 'white balance' selection for different conditions, and many have a way to set the balance for most any kind of light source by pointing at a white board and setting a custom white balance. Experiment a bit, it will make a huge difference