Neat idea for this photo. The glasses do not look very natural because the images you have place where the lenses should go seem to be a little rough around the edges. I like the lighting and the colors.
Nice idea, the cut-outs need some work, but I am sure you will bet better the more you try. Lighting looks good and colours are nice. I think I would have liked the 'attachment' more on the temple, it just seems too high to me.