@Aimee236 What a great property! I do like @Mike-And-Jane0 's suggestion of making two listings, and being able to rent to smaller groups. It may actually get you more reservations, because the size and pricing might put off a family of 5 or 6.
You could figure out a way to either close off the entire basement, or just the bedrooms down there, but actually 5-6 people shouldn't need a second kitchen. I think you should consider the idea and how it might benefit you. It would definitely lower your cleaning costs for the smaller listing.
IF you had a group of 14, how could they all eat together? I'm aware that you have several different dining areas, but not anywhere that 14 can sit and eat together. Same with your living room. How could you seat 14?
Other things: I think you need to provide more than 1 toilet paper roll for each bathroom for each stay. You say you'll provide 1 starter roll per bathroom. Generally, I think you should supply for the entire stay of up to a week. For longer stays, the guests should purchase supplies. Just be clear in your listing info how much you will supply, and when you expect guests to take on purchasing their own supplies.
I'd also remove the part about helping people celebrate an occasion. The size of your property is going to encourage large groups, and large groups and celebrations = parties. You don't want parties in your lovely property. It doesn't mean that you can't do something special for guests celebrating something special, but you may want to include that info in your booking/welcome message, rather than publicly in your listing. I know they're just words, but you don't want to have anything in your listing info that might encourage a party.
I also think you have too many photos. You may want to pare them down a bit.
Other than that, you've done a great job!! I wish you luck in your hosting adventure.