Those aren't sleeves, btw. That's the back and the two front halves in serious need of blocking.
With the help of Maya Angelou and the Yarn Harlot herself you can see the general shape of the neckline. The pattern calls for a roll top neckline, but last time I just did 2x2 ribbing all along the collar, and I think I'll do that again - it matches the button band.
I'm going to Abundant Yarns for Thursday's knit night, and hopefully I'll get a good start on the sleeves there. At this rate I'll actually get to wear this sweater while it's cold!!! =)