The duke here tries to explain how this spot of joy came on the face of the duchess , why she is smiling and blushing?! Why could you see the liveliness in her?

1) may because at the time of painting the portrait she was wearing a low décolleté dress and that the painter commented that she should loosen the upper part of her dress and she felt shy because of his comment, and shyness created the glow that was depicted by the artist , this is one suggestion from the duke.

2) the other one that she was glowing because of the presence of her husband's =we feel his jealousy.

3) may be the artist is giving a kind of compliment because he says I cannot reproduce the same flush through the colors , because her color is natural, or maybe it is courtesy. This indicates how beautiful , fare and young she is, full of life and color

ونقول انها Too easily impressed, anything can please her.

يارب تجييبه سهل وحلو