Armholes when making my own pattern: First trace the arm hole…then draw down like so, across, then out from the shoulder, and join the two lines. The bottom of the sleeve pattern should slightly narrow as it comes out from the armhole.
Transfer right to fabric. Make Your Own Clothes: How to Make a Pattern - Thanks to we have this amazing article on how to make your own pattern. Read up on this amazing skill and create clothes that fit your body type.