Flower girl dress help

My daughter and niece are going to be flower girls in my brother's wedding in September. I was all set to make them fairy tale dresses in some kind of nice fancy-ish fabric but then I went on to Pinterest and fell in love with this dress. My question: Do you think I can use the Fairy Tale View B and just use tulle for bottom skirt? Will that work? Or can I somehow combine it with the tutu pattern from the book? I don't have to add the trim seen in this dress, I plan to just use ribbon. Any and all advice welcome and appreciated. Any other patterns you can recommend? Full disclosure: I'm not great at improv sewing but I thought there is enough time to at least try it.