Hey wattse2000... don't be devastated. Your wonky stars quilt is really beautiful!
I too just got my first walking foot and am very excited to try it out. Thanks to you for putting yourself out there, because all these answers from so many knowledgeable quilters is a goldmine of helpfulness.
My grandmother once told me that the Amish would actually put imperfections in their quilts on purpose, because the only perfection was supposed to be in God. I remember thinking that those quilters must think very highly of themselves. Heh heh heh. Seriously though, if quilts had to be perfect, I think many of us would give up. Enjoy the beauty you have created!