Those plain greys and blacks tone down the bright turquoise skinny jeans just right. Even though attention is drawn to those jeans (and that's great), the whole look is uncluttered, balanced and well proportioned. Its also very chic. She knows her stuff.
This is the easiest smokey eye technique out there and is a great starting point for makeup beginners. Done by smudging your eyeliner, you can make it a faint smokey look or make it bolder with more applications.