I see! Regarding this:

Theme one of "Endymion," "A thing of beauty is a joy forever,...--to period is derived from the (King James) Bible's psalms, paraphrased and newly worded. Its exposition draws from mostly John Milton and William Shakespeare to paint the words. Most of the big blocks of writing are derived from Milton's "Paradise Lost."
If you're trying to tie in more Romantic poets, Blake was obsessed with Milton. He even did some engravings for a version of Paradise Lost. Then again, I suppose adding too many authors might dilute your analysis. I've always loved Milton so it interests me very much when people talk about his influence on the poets of the Romantic era.