Hi dear here I didn't use extra seam allowance for zip you can add one inch extra for back top piece and 0.5 inch extra for armhole. Just incase the length as per your daughter's height. The other measurements must be okay, I hope this may help you 🤗 Happy sewing
There is few other videos from this channel showing the way of attaching zip I don't want the video too long that's the reason I skipped that part.ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ds-s5RcMBqI.html Pls check this video from 22.00 mts Hope that will help you
