The quilt is beautiful as well as stunning and I am sure it was beyond challenging ! Congrats on the ribbon.
So are you dissatisfied with the technical issues in construction or the design?
Imho I would take my knowledge and move on unless you are so unhappy with the results and whatever errors you see are so glaringly obvious you can not live with it. The I would tackle a redesign - stressing those issues that I struggled with the first time. Only you can answer that question .....
by the way - how big is it??