Demarcation Line After Full-face CO2 Laser

I had full-face c02 performed in February. I had Botox performed 4 weeks prior for lines on my forehead. I did not expect to have such a noticeable line under my face. My main areas of concern were lines on my upper lip/chin (not a smoker). Further, I can see that the Dr. did more passes on my cheeks than above my lip and chin (the results in these 2 areas are not great). The procedure and recovery went very well. However, 3 months post procedure, I noticed that the lines on my upper lip/chin were only slightly improved. My skin is much lighter than it was before. I have a mask-like appearance. Further, there seems to be more large pores (orange-peel type) on my chin. There are a few very noticeable lines of demarcation. I can almost see where the M.D. sectioned the areas. It seems as if my upper lip/chin had fewer passes. Also, the line under my face is very obvious; makeup does not seem to cover the issue. Since I am now 13 months post procedure, what can I do to smooth and reduce the lines on my upper lip/chin? What can I do to reduce/eliminate the line of demarcation under my face? My husband (an M.D.) suggested I wait a year to have these 2 areas redone. I feel a little creepy with this mask-like look. Will a spray tan work on my lasered skin?