1. The colors depend on your skin tone, eye color and hair color.
Brown eyes: copper, bronze, apricot, beige, brown and shades of green.
Green eyes: brown, apricot, gold, shades of green, purple/plum
Blue eyes: gray, pink, brown, violet, apricot, greens, deep blue, silver, turqoise, black

I have blue eyes, blond hair and a very light skintone with pink and yellow undertones, typical scandinavian. My regular (day time) eye makeup is: Light gold shimmer all over lid, apricot on lid, a green-gray shimmery tone from crease and up, dark brown in crease, blue eyeliner on lash-line, black liquid eyeliner for cat-eyes, white eyeliner on wetline but black eyeliner in the outer corner, black mascara finished off with a layer of blue mascara.

Yeah, I complicate things. But boy does my makeup look fab! The only thing I change from day to night is that I add more of that green-gray shimmer tone to smoke things up, and I use black eyeliner on the wetline.

2. You can use whitening toothpaste, and I suggest you get an electric toothbrush (I have an oralb, but I don't remember exactly which model). Before you settle for bleaching, go to your dentist and have him polish your teeth. They use this sand-like thing and a rubber head on the drill, and they polish off any plaque and such that can come off. Most of miscoloring is just plaque that won't come off. When you've done that, you can try Crest whitening strips, or a home teeth bleaching kit. But bleaching your teeth really damages your enamel, so don't over-do it.
I've been drinking coffee and smoking since I was 14, and my teeth are white. Btw, no one have hollywood-white teeth unless they get veneers.
Gingivitis: FLOSS. FLOSS, FLOSS, AND FLOSS SOME MORE. And use Listerine, you can also use Corsodyl but if you use it for a long period (3 weeks would be long), you can get fungile in your mouth. Happened to a friend of mine, nasty stuff.

3. Eyebrows: I pluck em myself. Use a white eyeliner to mark below the brow what you're going to pluck, and NEVER pluck above the eyebrow. I did that once years ago, and now I look retarded and I have to apply makeup above the brow. Going to a salon is a good idea if you've never shaped your brows before, and after that you can do the maintenance yourself.

4. Cut out carbs. Carbs = energy without nutrition, it's pretty much useless for your body and you might as well be munching sugarcubes. Bread = sugar. Whole grain is only good for you because of the fiber, but you can take fiber supplements instead of that. Use fructose instead of sucrose if you are going to use sugar, for example in your tea or coffee.
Eat proteins and fats, avoid carbohydrates and starch (potatoes, rice, beans, pasta, broccoli, etc). Eat a small meal every 3-4 hours and try to get some form of exercise done, even if it's just 20 squats in the morning; everything helps. Drink water when you're thirsty, not pop or ice tea or juice etc. Your breakfast should be high in protein, since your body is eating away at your muscles and not your fat in the morning.

The "eat every 3-4 hours" thing is because your body slows down your metabolism after 3 hours, if you eat something (an apple for example) every 3 hours, it will keep your metabolism up and running. When the metabolism slows down, your body stops using your fatty deposits (which is caused mostly by eating carbs fyi) for energy and starts burning your muscles. Without proteins, your muscles will deteriorate (your heart is a muscle). Muscles also increase your metabolism, so the more musclemass you have - the more fat you burn off. Muscles also make you carry your weight a whole lot better. According to people, I look 25lbs thinner than I actually am - just cos of my musclemass.

I highly suggest a ketogenic or low carb diet. You won't have to focus on calories, and you get to eat a lot of things that we're taught is bad for us lol. Snacking on bacon, oh my.
I lost 20lbs in 1-2 months on a ketogenic diet. My mother lost 50lbs when she was on Atkins back in her days.
It's the only diet I've tried that actually works.