These three Kuvasz are from the House of Jejinic Kennel in Serbia. They're nine months old.
This photo showcases the Kuvasz eyes:
“The slanting eyes are special, quite unlike those found in any related kind.”
“The eyes are either dark brown or black. The eyelids are black. Their expression reflects strength and courage.”
From: Pál Sárkány and Imre Ócsag, Hungarian Dog Breeds, Budapest, Hungary: Corvina Kiadó, 1977, 2nd ed. 1986, p. 102, 104.