Prince Edward County....my province, Ontario. Ahhh. There is a lot to love with this post. The look on the dog's face which you rendered nice and sharp oozes with emotion and speaks to us...that dog is looking out for you even whilst frolicking. I like your shutter speed, you caught this , not only on a nice angle which adds to the excitement of the photograph but also you froze the action clearly. The face of the dog is sharp and that is critical. Your exposure is very nicely handled as well with no blow outs or block ups on the fur. You have also composed it well giving Cassie room to run into. Well done.