u/Al_the_law

I’m doing my very first cosplay as Kinga I’ve already bought the cloak, but I need to add arm holes to it so I can have my hands on the outside without having to open up the centre which I plan to so sew shut from the top to about my waist what is the best way to add holes for the arms so that I don’t destroy the cloak I’ve tried to find a video tutorial but haven’t had luck

I was thinking, if I cut something like this shape in the second image and then folded the flaps back and stitch them down it might work but I don’t know whether or not it would be at risk of ripping in the corners