Thank you all.
It was the only blazer in my size that wasn't cropped. I do have a light silk blazer that is plain so looks like bos mockup, which probably could look better. I had discounted it as more as a summer item. But with my handy thermals underneath I think it might work better.
I was literally a whirlwind just trying to find anything that would fit and be suitable. I also have lost a bit more weight due to stress so although I did see a fabulous silk All Saints dress I wasn't prepared to spend the money on it as I really don't want to stay at this unhealthy weight if at all possible.
I do have a plain black leather obi type belt that can be worn thickly or folded in half and worn at a similar thickness to the one I have on here but is plain. I did think this one drew together the squares in the dress though.
I like the fit of the blazer but the buttons are rank, I think I will either cut off for tomorrow or wear the silk if it doesn't all look too slippery as the dress has a bit of a sheen. And then replace the buttons of the new blazer at a later date.
Lots of funerals here would be more "fun" but my family are quite traditional and holding onto them are what is getting them through. Even though the deceased and I joked about making the funeral fancy dress, as in costumes just to see the reaction