Following the success of their 2013 Johnnie Walker Blue Label Skyline Collection range, Diageo has today announced a partnership with internationally renowned artist, Jeff Nishinaka, to release a new series of limited edition design Travel Retail exclusives for 2015. Each edition of the Johnnie Walker Blue Label Cities Collection, is engraved with a Jeff Nishinaka handcrafted design, bringing to life the cityscapes of some of the world’s most iconic travel destinations. New: Johnnie Walker…