Okay - so this is just a muslin, a rough version made from not-so-nice fabric to determine whether the pattern is flattering enough to cut up nice fabric for.
The pattern is a (60s or 70s?) vintage blouse with bell-bottom sleeves. When I bought it, as part of a bundle of vintage patterns on ebay, I thought it was similar to Tilly's Matilde Blouse.
I'd been umming and ahhing about the Matilde for ages - there have been many beautiful versions made (my favourite is sew amy sew's version in peanut-butter voile). What's put me off is that the pattern is only available as a PDF currently, although Tilly has mentioned on her blog that she has plans for printed patterns in the future.
My muslin is made from a pale old blue poly-cotton sheet that had worn far too thin to serve its proper function any more.
The blouse has a zip rather than buttons, which I actually rather love. It gives it a lovely vintage feel.
I think the blouse suits being tucked in more than loose.
The sleeves are rather funky, but I'm unsure about the blouse itself. I think it needs more room (is that called ease?): maybe an inch or two on either side seam.
But I can't decide whether to turn my muslin into a finished outfit in a nice printed cotton, or wait and see if the Matilde blouse comes out in a printed format later in the year. What would you do?