Here are a couple of nitpicks. The white balance is off in the first photo making your dog an odd color. Picture #2 could have used a reflector to put more light on the dogs face. Unless you look very carefully it looks as though he is missing his left eye. Photo #3 is great.
7D Mark II 6D 100mm f 2.8 macro 180mm f 3.5 macro, MP-E-65 300mm f 2.8 500mm f4 Tokina 10-17mm fisheye 10-22mm 17-55mm 24-105mm 70-300mm 70-200 f 2.8 Mk II 100-400mm Mk II 1.4 TCIII 2X TCIII 580EX II 430 EX II MT 24 EX Sigma 150-600