One of the characteristics of Raphael is his malleability in studying others artists and digesting their influences in a whole new "maniera". He did it with Perugino, making those delicate, soft, rounded-faced figures part of his own repertoire, later with Leonardo and those dynamic compositions of his, and was doing it with Michelangelo and his tormentous bodies when death cut him short. The process left a whole body of works in the hands of his disciples, who made of them what they could.
In this composition, I like how the rythm is marked by the embracing arm, echoed by the curved back of the chair and the reclined hed, all part of complementary movements and rounding shapes. The original work is made in a tondo, a circular format in vogue in Renaissance Italy. I personally think few compositions of that time have such a success in fitting so naturally in such format.
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Notes:
Here the Wikipedia page of the painting: