Good but subject to when you plan on travelling, which you don't say.
You have 7 days in the Gulf islands where the weather can be poor certainly in November & December and unreliable for a month either side of those times. So if you were planning on going any time from October through to January I would not go to the Gulf islands but would look elsewhere.
Good plan but as said depends on time of year.
I forgot to mention the season :mid December.
Sounds fine to me