I tend to see that Rossetti approaches the idea of spirituality from the perspective of a painter. Historically, scenes from the Bible, angels, etc are popular artistic subjects because spiritual/ God-like scenes should be the height of beauty. So when Rossetti talks about these things, I can picture him writing much in the way that he would paint those same things. His lines don't seem natural so much as an attempt to really depict the visual in the words. "The Blessed Damozel" for example includes a painting he did depicting one of the scenes, almost as if it were natural to him to supplement his lines with a painting. Hopkins on the other hand seems like a simpler man who is really awed and inspired by God's wonders. His poems seem much less studied, and more the lines of a man who truly believes that God is present in everything and revels in it. I think the lines flow more freely and he is content to use only his words as the highest form of expression.
I don't know if that made any sense at all.
