But I am a realist.

I am a portrait painter.

But, indeed, to say that I am a portrait painter is an inadequate expression.

I am a portrait." "I don't understand you," said Syme.
"I am a portrait," repeated the Professor.

"I am a portrait of the celebrated Professor de Worms, who is, I believe, in Naples." "You mean you are made up like him," said Syme.