So, I've bought more bed sheets and made more muslins. On Muslin #3, I went with a sheet that was closer to the final colour, so I could see if I liked the overall look.

I redid the collar and changed the neckline. I added the pocket flaps and sleeve flaps. I added some waistline flaps that I will use to adjust the waist.



I added the hood. I also did tons of small fitting adjustments. I also noticed that I still needed a swayback adjustment (notice the pins across my back). But, overall, I looked really good. I could probably wear it down the street and no one would notice that it wasn't a real jacket (except for all my pins, lol).

Since I can only sew my Ultrex fabric once, I made my swayback adjustment and made one more muslin. I wanted to be really sure that it would work. So, here is Muslin #4:


I remade the bodice without the sleeves. The front still fits well.


The side view is good. You can't see it from here, but I also tried making an underarm zipper vent (I'll show more on the final jacket). 


The back looks much better. I'm now happy enough to sew the final jacket!

TIP: One thing I found that really helped me with my fitting was making videos of me moving around in my jacket. It was much easier to see what needed to be fixed and what was just bad lighting.