There is only one crazy shaped pattern piece (plus facing pieces which I did not use) so provided you keep the pattern piece nearby so you can figure out which bit is what, this is an incredibly quick and easy top to put together.
If you have faith miraculously it turns out exactly like the line drawing!
There really isn't a lot to say about construction because there is so little of it - make a pleat and sew three seams! As I mentioned I left off the facing pieces and just used self fabric to bind the neck and arm edges.
Sewing with sequins required a bit of extra work, but I didn't use the generally recommended method of unpicking sequins from my seam allowances. Instead I just covered the seams and edges with some scraps of jersey, a method I have used before, so much quicker and works for me, but if you have very sensitive skin it might be better to go the couture road or underline the whole thing.
You can see below why the print version doesn't work as well - the drape detail is lost and it just looks like an oversized t shirt.
The party version is much better!