In the first shot from their spread, Perrie wears a Colourblock Suede Dress ($1,802.00) and a Sleeveless Turtleneck (not available online), both from the Edun Resort 2016 Collection. You can get a similar top from H&M ($9.99)
In the second photo from the shoot, Perrie wore a Creatures Of The Wind Fall 2015 Dress (not available online) and the same Edun Resort 2016 Turtleneck (not available online) underneath, and a pair of Pierre Hardy Ace Ankle Boots (sold out). You can get the look with a pair of River Island Patent Heeled Ankle Boots ($90.00) and a H&M Sleeveless Turtleneck Top ($9.99).