I'm still trying to see a line drawing! And the download instructions won't open...
DF-I haven't found a line drawing either, just the 'interestingly posed' styling-doing cartwheels & hanging over railings doesn't really do it for me as far as seeing how the dress looks. Though I suppose if I did do cartwheels I would know how the dress behaved!
The download button is on the lower right of the of the blue box ,
on this page. I've just tried it and it's a zip file,
and I got it to open (it's always a surprise to me when that happens
)
Good luck