I love that little bit that peeks out below the sweater in back!
Here you can see the whole blouse without the cardigan, although I really made it for layering and I doubt I will ever wear it on its own. The fit skims over the body smoothly, neither baggy nor tight. To make that happen I modified the front with a Full Bust Adjustment (FBA) and took in the waist in back to nip in toward my slight swayback. I cut one size smaller than my high bust measurement before I did the FBA to prevent the upper chest becoming baggy. I also re-positioned the front princess seam slightly to bring it closer to my bust point.
Another trick I used (useful for the narrow-backed, full-busted) was to cut the back pieces a smaller size so that more of the 'body room' ends up skewed toward the front, where I needed it. I got this technique from Truly Victorian's sizing method. It translates to modern sewing!
I sewed it mainly on the machine, finished the seams with the serger, and finished the inside front bands, cuffs, and neckband by hand.
The pattern is McCall's 6124, a classic princess-seamed shirt. I chose the princess seaming to get a smooth fit without the bulk of huge darts.
I am very happy with this and plan to make more! I would love to replace some of the long-sleeved t-shirts I currently use for layering with soft blouses like this. When I make this again, I will want to add just a smidge of length to the sleeve, and possibly shorten the body slightly. And possibly modify the neckline to be a lower scoop or a V.