It looks nice Chris. The blending of the skintones is great. Oils or acrylics? I would concur with Eric about the hair, but camera flashes nearly always wash out colors. Try using a single light to light the overall figure, then a slightly brighter light shining from your painted light source. Put the camera on a tripod and use the timer if it has one. Alternatively, try using a scanner. The hair color itself is great (don't ya just love redheads!), but the near-black roots seem out of place. FWIW, in my limited experience with flats - especially women - I've found that midtone color hair (mid-browns, blonds, and reds) needs more contrast from dark to light to pop the highlights.
Cheers,
Glen