Hi there Christina. I'm so glad that you've asked this question because I have some great inside information to share with you from personal experience!
You'll want to start by perusing the
Disney Fine Art Photography and Video website and in particular the Family Portrait Gallery. Be sure to also check out the section titled "Looking Your Best" for suggestions on what to wear, what to avoid and how to keep little ones entertained during your portrait session.
My family and I have had THREE family portraits performed at
Disney's Grand Floridian Resort and Spa over the years and each time, I return to the same location for our shoot because the results are simply stunning. However, due to the new construction that is taking place along the Grand's beaches as well as your desire to have both water and fall colors in the background, I would highly recommend
Disney's Polynesian Resort as an excellent alternative. I am certain you'll have lovely images captured in this incredibly picturesque outdoor setting full of rich reds and browns along with the brilliant blue of Seven Seas Lagoon!
Thanks so much for visiting us here at the Walt Disney World Moms Panel! Please feel free to send more questions my way prior to your October trip!