This picture is Riley's profile view, you can see his spine at the bottom, and head to the right of the screen.
This picture shows the bottom of Riley's butt, back of his legs, and in the midde, are his little boy parts.
This is another picture of Riley's boy parts...there is a little pointer to show where it is. This kid is not shy when it comes to having his picture taken down there! Haha, he had his legs open the whole ultrasound, as if to let us know for sure he is a boy!
This is a 4-D image of little Riley's head, and body from the side.