The models are Signe Lund and Steffi Soede. (source)
Bianca Balti is wearing Dolce & Gabbana on the January cover of Harper’s Bazaar Bulgaria shot by John Russo, styling by Almudena Guerra. Hair and make up by Steven Hoepner and Christian McCulloch. (source)
The cover was shot by Patrick Demarchelier with styling by Giovanna Battaglia. Hair and make up by Teddy Charles and Gucci Westman. (source)
Click here to view 2015 cover featuring Rinko Kikuchi, here to view 2014 cover featuring Natasha Poly, here to view 2013 cover with Vanessa Axente, here to view 2012 cover featuring Saskia de Brauw, here for 2011 cover with Karen Elson, and here for 2010 cover with Abbey Lee Kershaw.