I would chose benevolent because he’s so kind and well meaning but perceptive is also possible I think because he I guess knows how to help and is willing to help.
The helping verb is <u>have</u>, as it shows a continuos tense.
One of the main characteristics of Jean-Antoine Houdon's style is that his artworks mainly features "<span>a combination of naturalism and a new classical style." In addition, he was prominent French artist at his time wherein his principles of art made him one of the most influential figures in the Age of Enlightenment.</span>