Actually, on my Mavericks box, Safari 7.0.2 seems to pass Acid2 just fine; the nose even changes color on hover. However, Chrome 35.0.1912.2 pretty obviously fails with the top of the head being messed up and a red line over the forhead. The nose changes color, so that's good. :)
https://bugzilla.mozilla.org/show_bug.cgi?id=580920