Ren, your post brought me to the museum. This painting maybe dat

in 16-18 century. Although not one of world famous paintings, it is a valued piece.
For comparison, It is suggested to look at:

1. Velazquez,
http://www.ibiblio.org/wm/paint/auth/velazquez/

2.Sargent,
http://jssgallery.org/

3.Vermeer,

4.Bouguereau
http://www.artrenewal.org/