I was really rusty with my Latin poetry yesterday so I went over the same material today. Did better than yesterday -- looking at it with fresh eyes helped -- but I'm not sure about ll.11-12:
...nec Phoebo gratior ulla est
quam sibi quae Vari praescripsit pagina nomen.
I think I've got most of this but I can't make sense of "sibi". I'm leaning towards agreement with "Phoebo" -- "Phoebus himself" -- but I would ...