Those are all beautiful! The first is stunning, exactly the kind of sweater I'd love to have but, living in the sticks, would have no place to wear it. The others are all just as lovely and, for me, would be more versatile. I also love the colors you chose. I'd love to have you be my personal shopper any day!
If you find yourself looking for one later and they are out of stock, as Cougar would tell you, haunt the sales part of their site. As people return things they go on sale and with persistence you can find what you want in your size. I know this directly from Cougar as she has counseled me in the ways of J Jill shopping.
Also, if there is a J Jill shop close to you it couldn't hurt to let them know what you are looking for. Since online returns can usually be returned to stores the stores get a lot of items that I'm sure they'd be happy to sell to someone locally rather than return to the warehouse.