Bottoms are tricky, because of the tail. If you want to draw a skirt, like I did on Sue, that's above the base of the tail, then the tail must be under the skirt and come out of it, and notice how I arranged the skirt, to where the tail holds part of the skirt up. If you draw a skirt that is below the tail base, then the tail must be above the skirt, and will not affect the skirt's position. Now if you draw pants on your girl, then the tail will always be above the pants, and the pants will always be lower than the tail base. If you decide to draw a dress, then it will always be above the tail, there fore the tail will hold up the dress, like it did to the skirt Sue is wearing.
I also drew the shoes on in this step. They are fairly easy to draw. If you want shoes that are very short, then draw them as long as Sue's. Different shoes have different heights, so experiment on which you think looks best on your girl.