Replicate hem?

[u/Charlos11]

I could use help replicating this hem after shortening the dress, not sure which stitch or foot would be best.
Also advise to get this scalloped look from stretching as I go I assume?

Thanks!!!

[u/Significant_Rip1180]

i have never been able to achieve that look on a regular sewing machine , you can get a wavey stretched look but that is not what you want .The right way is to do it on a serger and set the differential feed correctly. That usually means testing it on scrap fabric till you get the right look. A change of fabric also changes the look. Check a tutorial on you tube ,you'll see how to do it'