Awesome thread =)

Totally American Mastiff (no drool like the English Mastiff)

Giant size and forbidding appearance; a worthy watchdog. She is a creature of habit... does not bark senselessly, but if a stranger approaches, the American Mastiff will be there to determine whether he is friend or foe. They are accepting and non-aggressive to visitors. However, the American Mastiff is very positive in his expression of protection, and it is in a stranger's best interest to pay attention to her… she is fierce, courageous and selfless. She displays dignity rather than gaiety; protective but not aggressive; quiet, calm, loving, kind, gentle, and loyal.

That said, my t’s eyebrows do not have that “What’s wrong” look, but more of a Spock, one eyebrow down, usually both knitted together, “trying to figure things out” look. lol. SHe is large boned and looks intimidating, especially since she is almost always frowning... first I was considering a boxer... but I think this is more fitting for her.
Kiya