Homer may have been influenced by his own experiences and the world around him while painting 'Painting the New Novel'. His paintings often had a sense of place. So, he could have incorporated elements from his own environment into the painting if they somehow related to the new novel. For example, if the novel was set in a coastal area, he might draw on his knowledge of seascapes to make the painting more realistic and engaging.
He might have started by thoroughly reading the new novel. This would give him a good understanding of the story, characters, and mood. Then, he would select the key elements to depict in the painting.
Homer probably used his own artistic vision. He could have focused on the most vivid or important scenes from the new novel. He was known for his ability to capture the essence of a moment, so in 'Painting the New Novel', he would likely do the same. He may have also experimented with different compositions to best represent the novel's content.