Here's my finished muslin. It turned out way cute. This is a stretch twill and I have an entire bolt of it. Yes, I said a whole bolt. Yikes. The pattern itself goes together very easily and quickly. There are a few fitting issues I need to work out.
The front fits okay although it is wide throughout the bust. The armholes and neckline will be okay once the facings are applied. I have already done my petite adjustment for the two front pieces and the back. You can't really tell from the front photos but the princess seams are kind of pointy over the bust point. I'll smooth out that curve next time because I don't want it pointy and it's a tad too boobilicious for me. I really like the contrast yoke and waistband. It's just the "wrong side" of the twill. I am thinking that I'll do the same thing for my silk suiting. I'll get some black wool and use that for the waistband and the yoke. Don't know . . . still debating.
Here's the back. There are more fitting issues here. It is also too wide in the upper area and way too big in the waist. The hip area is okay although maybe just a titch snug. I'll add 1/4" to the sides of the front and back skirt.
Here you can see what I'll basically do. I'll take a 1/2" out of the bodice width from and back and snug up the waist by about two inches. For reference this is a KS size XS.