Liberals says the Gospels contradict one another. And they level the same allegation against other “synoptic” books of the Bible (i.e. Samuel/Kings/Chronicles). Conservatives respond by pointing out that the Gospels are selective histories which don’t pretend to give the whole story. That was never their intention, and that's not a precondition of truth.
In light of this it’s ironic to see some opponents of picturing Jesus claim that a picture of Jesus is false because it fails to fully represent the person of Christ. But if that’s the standard of veracity, then liberal critics of the Gospels were right all along.