About Carousel

Hi, I made a little Carousel in size 2yrs. The photo on the front let me think it would be about knee length, however, it turned out much much longer than that in the 2yrs size. Admittedly, my little model is petite, but still, it looks like the whole length of the hem should have not been there. Am I the only one in this situation? Have I made something wrong? Any helps and tips would be appreciated. Thanks.