You are too close to the quilt to appreciate that you have absolutely created what your son is desiring. The denim sashing is calming it down, and I can pretty much guarantee that in about three months after you have presented it to your son, you will walk in one day and LOVE it!
Plaids are busy, tis true - - but you are doing well. (I am assuming I am late to the advice, and I will probably never read through all the pages, but I had to say that I think you are doing a GREAT job!) <wave>