Final answer:
Rossetti was involved in the Pre-Raphaelite Brotherhood, a group of English painters, poets, and critics dedicated to reforming art. They rejected a mechanistic approach and sought to emulate the detail and composition of Quattrocento Italian and Flemish art.
Step-by-step explanation:
Rossetti was involved in the Pre-Raphaelite Brotherhood, which was a group of English painters, poets, and critics founded in 1848. They aimed to reform art by rejecting a mechanistic approach and returning to the detail, color, and composition of Quattrocento Italian and Flemish art. Rossetti was one of the founding members of the brotherhood and continued to paint in their style even after they disbanded.