A good place to look around for same or similar would be petfinder to get some ideas, tons of pics and pups on there to look through. Being a mixed breed they won't all be the same since mixed breeds can take any traits or combination of traits from the breeds involved and even litter mates can be completely different in just about every way. Mixed breeds don't have the set genetics, predictability or averages like a pure bred does so there are a lot more differences and variations among them even when mixed with the same breeds or even with the same parents sometimes. The fourth link has some links to some easier to understand genetics basics information if you'd like to learn a little more about that.
www.petfinder.com
www.amstaff.org www.mastiff.org
home.comcast.net
www.learntobreed.com
www.apbtconformation.com
www.petfinder.com
www.amstaff.org www.mastiff.org
home.comcast.net
www.learntobreed.com
www.apbtconformation.com