He explains that when he talked of produring the picture of
Lady Euston and her
sister it was to please
Lord Euston and to do a kindness to Humphry. He doesn't want the picture for himself as he already has a portrait of Lady Euston from a later period. Lord Euston himself has a picture of his wife, painted by
Hoppner. However, he means to see Humphry's picture with Mr. Smyth, Lord Euston's brother-in-law. He urges Humphry not to bother to clean it as he can see a picture's merits through the dirt. He thinks the price exhorbitant. Humphry has a right to rate his productions as high as he likes, but the picture was painted at his own request and not as a commission. He thinks that the picture must remain on his hands.