I recently made my ruffle shirt. I had purchased this fabric from Emma Seabrook a couple of years ago at the American Sewing Guild Expo in Indianapolis. I fell in love with the fabric because of all the colors and it is fun. However, it is not a fabric you want to wear when you're trying to look thin.
I used Simplicity 3634 without the cowl neck and scooped the neck line just a bit more. When working with ruffled fabric you are basically working with a moving stripe so you will need to either pin or baste each row to keep the ruffles/stripes running in the same direction. Finishing the sleeve and bottom hems was easy, I just trimmed so that a finished ruffle was at the bottom. the neck line wouldn't work that way so I just serged a small binding on just like you see in a t-shirt.