Good painting is the kind that looks like sculpture.

The best artist has that thought alone Which is contained within the marble shell; The sculptor's hand can only break the spell To free the figures slumbering in the stone

The stone unhewn and cold Becomes a living mould, The more the marble wastes The more the statue grows.

The greatest artist does not have any concept
Which a single piece of marble does not itself contain
Within its excess, though only
A hand that obeys the intellect can discover it.

Painters are not in any way unsociable through pride, but either because they find few pursuits equal to painting, or in order not to corrupt themselves with the useless conversation of idle people, and debase the intellect from the lofty imaginations in which they are always absorbed.

It's as you might describe a painting or a sculpture.