I’ve put together a tutorial for you and I’ll give you the measurements that I used. The pictures and instructions correspond to a second dress that I made, hence the red skirt; this one is about a size 5. (I actually didn’t like how the second dress turned out – the prints on the fabric were too similar in size – I separated them and ended up with the cutest shirt for Olivia, and I’ll sew the red dot into a skirt.) This is going to be an “adjust for your child” sort of sizing, okay? I’m estimating that the circus dress turned out to be about a size 12-18 months and I’ll give you the measurements that I used to help you guesstimate your own sizing.