It is probably a serged edge and the white is the thread

Super cute! It perfectly highlights your nice shoulders! Way to go

So beautiful! They have personalities right from the start

In my opinion I would just sew the striping that way. They make ribbing and sweater knit to match... It is probably easier to find someone who can sew it this way rather than print it.

 You might be able to take it in on the top seam of the shoulder. I used to do several shirt alterations like this for a lady who liked higher necklines.

Turn the shirt right side out, smooth seam at the top of the shoulder. Mark 1" down from old seam line and taper out to the sleeve area.

Keep in mind that this does lengthen the shoulder seam but depending on the sleeve type/shoulder type it may not be an issue.

Silky fabrics have such personality... I find that the  sewing direction makes a huuuuuge difference in the finished seam. Hanging cut pieces for a day before sewing can help with hemming too.

Pming

These ruffles are actually called flounces Instead of being a straight cut and gathered strip like a regular ruffle it is actually a circular cut strip or a spiral. This dress appears to be a spiral cut flounce for sure!

http://www.blogforbettersewing.com/2011/04/dissecting-dress-atelier-versace-gown.html

I would do an a line base for this dress.

Yeah I have only watched what is on Netflix so that will give me time to catch up

I don't like bird motifs for my personal things lol that's why I loved that sketch so much!