Also, I was unable to block it properly, given that all I have is this piece of styrofoam. It has worked for me well with all my sleeveless projects but now there was not enough room for the sleeves. I had to improvise, block it sideways and fold the bottom lace section up at the seam and pin the lace edging to the body.
It did not work. That bottom part took two days to dry and the lace was still a bit curly.
After adding the crochet edgings, here's the final result:
Yep, the sleeves look baggy, but so be it. Either I learn to live with them or I bring the whole thing back to a plastic bin to age for another three or four years.
I wore it to work, got a few compliments, and nobody said anything about the sleeves, but maybe that's because they're too polite.