The models are Jean Campbell and Ruth Bell. (source)
Click the links to view past campaign images of Carolina Herrera: Fall Winter 2017, Spring Summer 2017, Fall Winter 2016, Spring Summer 2016, Fall Winter 2015, Spring Summer 2015, Fall Winter 2014, Spring Summer 2014, Fall Winter 2013, Spring Summer 2013, Fall Winter 2012, Spring Summer 2012 and Fall Winter 2011.