Quilted Robe Progress

I'm hosting a Fall robe sew along ATM. I'm making a quilted version and sewing ahead so I can share some info on my process as participants plan for their project.
Today I pieced the scrappy quilted robe back, spray basted it to the scrappy batting I'd already pieced (and cut) then I trimmed away excess fabric.

Finally I free motion quilted the fabric to the batting. 
So I've completed the robe back and can move on to piecing fabric for the robe fronts.