Family gathering?

This is a picture taken at my great uncle and aunt's house at 13 Broadwood Road. Would date to mid 1920s. She is third from left. In an earlier post she is pictured with the man third from the right.

Has anybody a view as to whether it is a family snap - with the Chinese side of the family of which there must have been many though I have never been able to trace any - or a picture of servants. The child is not my aunt's as she never had children but may be one of the other European women pictured.

Thanks.