I can tell you this....the very first quilt I ever set the blocks on point came out "wonky" too.....once it was stretched on my floor frame to be hand quilted, it was only slightly better. But, as I worked across the surface, the backing was coming up short, even though I had measured the correct additional 4 inches all around. So, the moral of my tale is this......IF you are going to hand quilt it, I highly recommend putting it in a floor frame,(which provides some stability for the wonky) and be sure to add many additional inches to the backing to accommodate the way these "wonky" quilts seem to shift as you work across the surface. Some of those "puckery" places will quilt out as you are working the surface....some won't. It just becomes part of the "uniqueness" of this quilt.
I think the quilt is pretty and worth finishing up...regardless of it's faults. I still use the wonky quilt I did to this day...and it is appropriately named..."The pieces just don't fit"!!!!!!!