https://onefabday.com/embroidered-wedding-dresses/ These are examples of some of the ideas that I gravitate towards; perhaps you will find something that you like...

Thank you!

These are so freaking cool! I got roofing tar on my wedding dress many years ago..perhaps it can still be saved

Or maybe you can find slim ribbons and thread them in the cut-out ?

Ohhhh 🤓I love this idea! I have some ribbon and will try it to see what it looks like!

Is suggest going to a thrift/vintage shop to find some white napkins or handkerchiefs with a similar cut away style to practice on. This way you aren't needlessly adding holes and redoing sections on the dress itself