Basically, it is impossible to have a small head of six points in BJD, but it can be because the height and age of BJD are set in direct proportion. For example, three points are 16- 18 years old, four points are 10- 14 years old, six points are 5-8 years old, and even the smallest eight points and twelve points are considered as babies. OB27 is very mature. It's true that six sub-packages can be matched with OB27, but clothes with special clothes are not as easy to find as OB27, so I personally recommend that they can be matched with Barbie Kerr, and a loose pink skirt should be ok.