Sewing a vest

Partner recently lost some weight and wants new vests that are more flattering to his current figure. The shape and style needed to be somewhere between these two and sort of like this pattern.

I pulled this pattern out of the file...
... and traced it out in the size I thought appropriate, without seam allowances.
I then redrew some of the lines to reflect how he wanted the vest to look.

Using scrap fabric I then sewed together a test vest, adding seam allowances only at the shoulder and sides. I then pinned it where it needed more adjustments.
The shoulders needed a little more slope to them.
And it needed to be a little smaller across the front.
He has said that he wanted it to be short, but I convinced him it should be a little longer than he thought and lengthened it. Don't forget to do both front and back when making longer or shorter.
Make a second tracing of the front and cut it at about 1/3 to 2/3.
Now cut two front facings and two interfacings from the smaller 1/3, remembering to add seam allowances. And two front linings from the larger piece. Sew the front facings and interfacings to the lining and press open.
Cut two pieces of back from the lining fabric and sew in the darts, pressing the darts towards the center on one and towards the edges on the other.
Right sides together sew the two fronts to one of the backs at the shoulders, same with the front linings and the other back. A proper vest should have no fewer than 10 seperate pieces. Depending on whether there are pockets and /or collars and back straps this number can easily double.
Right sides together sew the inside of the vest to the outside leaving the sides open.
Clip all curves and corners carefully.
Turn vest inside out through the shoulders.
Press flat using a presssing cloth if necessary to avoid damaging the fabric.
Through the back pull the sides from one side inside out, pin and sew.
Press flat and sew the othe side as far as possible on the machine and finish stitching by hand.

Edge stitch along all edges.Mark the buttonholes on the left front and work them.
Add the buttons and make sure that partner has it properly buttoned BEFORE taking the picture.
Back view.
I left out some photos to keep the post shorter, if something needs clarified please feel free to contact me.

Deswegen, because he wanted this.