Wow! I never would have guessed the orange underpainting was there. Is that how you achieve the special glow and depth? I've GOT to start thinking about underpainting with complements... This is a beautiful painting, and so is the Eiffel Tower piece. I love the idea of doing a series for a specific person at a specific time in their life.
s o interested as to why yyou use red for a background underpainting
Katherine and Sharon, the reason for the orange is that it gives the painting a radiance that can't be achieved with a white background. I also use greens, and sometimes I just use the leftovers on my palette. I used to do a complete underpainting in terre verde when I did portraits. The suggestion came from Chris Sapers book on portraiture, and the reason for the terre verde was the fact that it is the complement to the fleshtone.