I do see Great Dane in Merlin - mostly in his face - the size and shape of his ears, the more square muzzle - neither Dalmatians nor Pointers have that blocky a muzzle. One of my beloved family dogs was 3/4 Great Dane, and though Merlin doesn't look like Gracie did, he does bear a decent resemblance to my big brother's 3/4 Dane girl, Princess (RB). But what I see most in him is just sweet doggie love, and that matters more than breed to me, and I bet to you, too!