I just completed piecing the top to a quilt for my granddaughter (almost 12). She too picked out her own material. Her room is purple with green curtains...and odds and ends furniture like her blue desk! So...her quilt is made of Happy fabrics in orange, purple, teal, black and white....oh, and some green. I'll try to get a pic on the website asap. It looks wild...but she really likes it. Your quilt looks just fine.