He's adorable, but I don't see dane at all. I'd expect to see much more bone and much larger paws if there was dane in there. How talk is he and what's his weight? For reference, Riddle is 5 months 10 days and is over 85lbs and closing in on 30" tall. Note the head shape and the large knobby wrists. I'd expect a giant breed mix to be at least 50lbs by 5 months.