Good luck to you!
Yes, your skin tone will improve. Even better, when you wake up in the morning, you will be AWAKE! Ready to roll! No dragging your butt into the kitchen just to sit back down, exhausted, to wake up over the course of an hour with cigarettes and coffee (or tea, English Chick)! You will be able to take deep breaths, and you will feel clean and fresh and strong.
I quit in 1997. Quitting was the hardest thing I have ever done. I loved smoking, and I still miss it. After 21 years, I was up to over two packs a day, three on the weekends. I quit for a year in 1984, and for a year in 1988, and for shorter periods countless times.
Here's what finally worked for me: I hit it with both barrels. I cleaned the house and car and tossed the ashtrays. I cancelled the morning paper, stopped buying coffee and alcohol. I got a hot tub. I talked a shrink into prescribing Wellbutrin (it wasn't available for smoking cessation yet), got a hypnotist who came to the house twice a week, used Nicorette (a lifesaver!), joined a gym, and bought pounds and pounds of hard candy. Once everything was in place I took three days to "taper off" to ten cigarettes a day and then quit.
I don't recommend taking more than a week to taper off. It's best to quit cold turkey, as Purple Chicken and Bluie said.
It's tough, but you can do it. Just keep thinking about what you can do it that extra 10 or 20 years of life...