Thanks for all your wonderful remarks!
The Bluprint class is: "Wild Quilting: Creative Free-Motion Combinations"
https://www.mybluprint.com/playlist/10162/16978
You don't mark the top first.
I quilted it on my Handi Quilter long arm
The finished piece measured about 32" X 19", the bag is about 13" tall, 6" deep and 12" wide.
The print fabric at the top & handles is the backing fabric I brought to the front to bind, no lining. Just folded the piece in half, sewed the sides, boxed the bottom & added the handles.