I'm working on a Star Wars GN for Darkhorse and since my thumbnails don't reveal any dialogue or give any plot points away I'll post a couple here so you can see my process. I usually take a few minutes to look over the script, write down any specific reference I need and then sketch out my initial impression on printer paper.
The hardest part of comics is the problem solving; choosing the best framing, angles and panel size to clearly evoke the atmosphere that the writer intends. Storytelling isn't about how well you draw. It is about how you think.
My favorite comics artists consistently try to serve the script more than the vague notion of what the fans might want. My hopeful assumption is that fans respect a well crafted script and an artist who can bring that script to life in such a way that never leaves them feeling overly distracted by the flourish of the drawing. I am continually refining my approach to have a balance between allegiance to story and quietly compelling image-craft.