Hi Lintu, yes, lovely fabric. The LQS that I work in carries a collection of Amy Butler fabrics and patterns, they haven't caught on yet here, but I like what you did with them, your daughter will love it ! You've had lots of great advice for the quilting, our shop is really into the varigated threads. That seems to be the popular pick lately. As far as the funny stitches on your machine goes, is it still under warrenty? Check your bobbin tension, bobbin case could be loose, thread take up lever (some machines have had a recall on that) bobbin wound properly? Some machines don't wind bobbins properly and we call them soggy bobbins, they are very loose. Some sewers actually put extra tension on when they are winding bobbins, to stretch the thread and wind more onto their bobbins, which causes the bobbins to be wound too tight, and then the machine can't pull the bobbin thread properly, and thus causes tension problems. Of course, you said you already changed your needle and rethreaded the machine, which is the first thing you should always do, did you make sure your bobbin is running in the proper direction? What kind of thread are you using, the same top and bottom? Some sewers like to use the prefilled bobbins, which is a little bit lighter thread and sometimes doesn't always get along with your regular weight thread. Oh so many little fussy things just to sew a nice straight and true seam! Hope some of this helps, not just you, but anyone that reads this. Take care, and Hello from Auntie B in Saskatchewan.