I thought the same thing about Meatball. He looked lanky, tall, totally not like a bulldog. He's 2 now and he's starting to look more like one. He's still on the taller side, but definitely a bulldog!
Most def looks 100% to me, some people just don't know what they look like and most look diff. My first litter there is one pup who looks more like a boxer but both my dogs are AKC! Your pup is beautiful by the way! Have fun and enjoy!!