No deviation from the generalised type was possible.

The Christian God, on the contrary, is a spirit; and all the emanations from this spirit, whether direct, as in the person of Christ, or derived, as in the persons of the saints, owe their sensuous form and substance to the exigencies of mortal existence, which these persons temporarily and phenomenally obeyed.
Since, then, the sensuous manifestation has now become merely symbolic, and is no longer an indispensable investiture of the idea, it may be altered at will in Christian art without irreverence.

The utmost capacity of the artist is now exerted, not in enforcing or refining a generalised type, but in discovering some new facial expression which shall reveal psychological quality in a particular being.

Doing so, he inevitably insists upon the face; and having formed a face expressive of some defined quality, he can hardly give to the body that generalised beauty which belongs to a Greek nymph or athlete.
What we mean by the differences between Classic and Romantic art lies in the distinctions I am drawing.

Classicism sacrifices character to breadth.