Personally, I don't think that the seam lines are distracting at all. Did you use a white batting like white Warm & Natural? I like the quilt a lot and don't see anything wrong with it. I know that if you're using a lot of black in a quilt, it helps to buy the black batting, can't remember the manufacturer, and maybe next time you're using a lot of white in the background of a quilt to use the white batting. Great job though - I love black and white quilts, in fact I just finished a black/white log cabin for this year's family reunion and I think it looks great.