Simplicity 1540 done

More or less, anyway. It should get a final press, but I might or might not do that right away. If it's going with me, yes; if it's going in the shipping container, no doubt it's going to need a press when it comes back out anyway.

My dress form's still in a bizarre state where nothing hangs right on it. I'm about to shrink it down to its minimum size, not fiddle with it, so:

My main conclusions about this:

1. Never do hand-worked buttonholes with regular thread, not even doubled, and probably not quadrupled either. You'll deeply regret it before you've even finished the first one, and once you've cut the first one open there's nothing to do but finish them all. It'll take forever and the needle eye may wear through the thread. If you can't get matching buttonhole twist or other very heavy thread, just do them some other way. I did try cording these but it didn't work all that well. I suppose I could do another go-round with real buttonhole twist, which I've since been able to find.
2. This pattern is meant for fleece-like fabrics. A lot of the synthetic fleece readily available in the U.S. would be a bit too drapey for the design, I imagine, and the lightweight fusible the pattern recommends for the collar and sleeve bands might not work at all on fabrics that melt at low temperatures. Boiled wool and some of the coarser synthetic fleece types should be OK.
3. It's nice that the pattern gives you proper upper and under collar pieces, but the sizes might not be quite different enough depending on your fabric's turn of cloth.
4. I took in the side seams quite a bit, but it still seems rather loose-fitting. Probably not my best look.
5. Because of the roundness of my buttons, I had to make the buttonholes longer than I'd have liked; a deeper underlap might have been better. Obviously the pattern's not intended for thick buttons in the first place, though, because there's supposed to be one right in the middle of the back, where anything protruding would be rather awkward.

BTW, I did in fact decide to topstitch the front edges, and I added non-functional buttons to the pockets to show off the fact that I have these buttons in a few sizes. I did have to choose carefully because they clearly have some sort of past: they are not all quite the same color.