Though formerly considered ill-formed and primitive, Henri

Though formerly considered ill-formed and primitive, Henri Rousseau has become an iconic figure of Post-Impressionism for his dream-like canvases painted like he was naive.

a)Henri Rousseau has become an iconic figure of Post-Impressionism for his dream-like canvases painted like he was naive.

b)Henri Rousseau's canvases, painted in a naive, dream-like style, later established the artist as an icon of Post-Impressionism.

c)Henri Rousseau painted canvases in a naive, dream-like style that has become an icon of Post-Impressionism.

d)Henri Rousseau's canvases were painted in a naive, dream-like style that was later iconic of Post-Impressionism.

e)the canvases of Henri Rousseau are icons of Post-Impressionism due to being painted in a naive, dream-like style.

I would go with A as there is nothng wrong with the sentence and moreover other options change the meaning.

In B -

Henri Rousseau's canvases, painted in a naive, dream-like style, later established the artist as an icon of Post-Impressionism.

can some one please explain the relavence/use of the highlighted words(above) ? i did not understand.

Thanks in advance.