It might be helpful to you to look at some example scripts as you work on yours. The scripts I’m posting here are not specifically about poetry, but they will give you an idea of what it looks like when people do this kind of work.
Here is a great database of comics scripts. It’s actually got some big-name books and writers in there, including an issue Neil Gaiman’s Sandman and an issue or two of Batman, so if you into comics, it might be fun to peruse some of these.
I haven’t found a comparable database of video scripts, but here is one example that you may find helpful. You don’t have to follow this format specifically, but this writer’s attention to detail for each shot might help you out.