The character of the artist doesn't enter into the nature of the art. Eliot said that art is the escape from personality, which I think is right. We know that Velรกzquez embezzled money from the Spanish court and wanted power and so on, but you can't see this in his art.
Lucian FreudThe painter must give a completely free rein to any feeling or sensations he may have and reject nothing to which he is naturally drawn.
Lucian Freud