I just got a new dog, and would like to indentify what mix of breeds he is.?

If you can answer this question, I will email you his picture. He's about 30 lbs, one year old. White body, a couple large orangish-brown patches on the body. Head is darker brown and grey around the muzzle. Ears are triangular and short. They stand up when he's alert. Face and muzzle remind me a bit of a shepherd. Very large paws. Tail is all white, and he carries it arched over his back. Lots of hair on the tail and around the hind legs...reminds me of a retriever. Very friendly, alert and seems intelligent.