Pretty pastel jeans! Pastel colours are a family of colours who have a high value and low to intermediate saturation. Key words to describe this colour family are "soothing, soft, near neutral, milky, washed out, desaturated.
Jessica R. looks cute and ready for winter in this emerald green coat. You can get a similar look by pairing your over the knee boots with a block coloured coat. Coat: Zara, Turtleneck: Banana Republic, Jeans: Denim, Boots: Ivanka Trump, Bag: Prada.