There's a range in terms of 'how thin' most guys like girls to be.
The vast majority like girls who are thinner then the average woman in the U.K. or north America.
The vast majority like girls who are a little meatier then what most women seem to think is the ideal physical shape.
As for tanned, I'm not sure, I don't mind any complexion but don't really like tans. If a girl is pale, that's hot and would prefer her natural, tanned state. My impression is people who live in areas with a 'beach culture' view tanning as normal, and the untanned as looking odd. In other areas and demographics, tanning is probably viewed as being an odd thing to do and the results unnatural.
Not really, I tend to just like the person more on personality more than looks, then if they have a good personality then it makes them more appealing, but fr the most part I don't like fake tans, I don't like when girls wear a huge amount of makeup. Like I was on the train to uni this week and there was this one girl, at the start of the journey she had no makeup on, looked fine. Then halfway through the journey she starts doing her makeup, I mean she starts slathering on fake tan, eyeliner, eyeshadow, mascara... at the end I was like wow wtf you look like an absolute wreckkk, she looked wayyyyy better before the makeup. It just goes to show, you don't need loads of makeup and you don't need to look the way everyone else does to look hot.
A slim or slender girl would be great. The two adjectives imply more flesh than stick thin.
An overly tanned white girl is frequently a turn off because of looking artificial especially if she's got light hair and eyes. In contrast, a darker haired girl would easily get a darker tan without losing attractiveness. It really depends.
However, as for me a slender body and a goldish tan have the best chance for success,.
Women with curves are where it's at. Though it's important for a girl to be fit enough to be healthy. She should be physically able, but also love food. If girls get too thin, they lose their butt and boobs. Hourglass figure is by far the most sexy in terms of physiology.
The complexion issue is always divided, but I personally don't care about it. If the girl is oompa loompa orange or has skin like leather because of how they tan then even the darkest tan won't make up for it. Being pale isn't all bad, albeit it is limiting for what colors of clothing you can wear without looking sickly.
Honestly the toothpick girls sicken me. Three words:
A lot of guys aren't into the tanned look and the smart ones know that it is unhealthy for your skin in the long run, as it often leads to cancer. As for being thin, yes, that is preferable to most guys. It is better to be 5lbs underweight than 5lbs overweight. Most girls are about 10lbs overweight and could stand to lose weight. If you're not sure, you should be asking a doctor or professional trainer what the ideal body weight should be for your height and frame.