I started last night, and finished this afternoon. I did take some progress photos but silly me forgot to put the SD card in the camera so they've been lost to the ether.
Quite chuffed with it as a first punt at the pattern. The fabric is fray-o-liscious and I should have done more overlocking but it will not exactly be hard to make myself another one. The pattern was a tiny bit small for me but some tweaking to the seam allowances and button placement have cleared that up. The collar was fiddly, but I'm yet to meet a collar that isn't. (And yes, the photo is taken in my bathroom - the lightbulb in the hallway has blown!)
Apparently my mum made a very similar blouse for a school project back in the late 50s/early 60s but without the diagonal front.
At first I thought the raglan sleeves were making it sit oddly baggy across the shoulders, but I've realised this allows a great range of movement which will get tested at lindy hop tonight :)