What a great reading of “The Comet” using one simple concept (water) as your lens! This technique shows the power of connecting a close reading of a single word (or related words) to the broader theme of the text.
I also like how your focus on the natural imagery (something you did effectively with Frankenstein too) illustrates that nature is not simply a backdrop to the story, but part of its very essence. I think we could apply a similar technique to the imagery of the Antarctic in “Who Goes There”…