Ceiling of The King’s Grand Staircase by William Kent by curry15 on Flickr.Via Flickr:
The ceiling is designed to give the impression of a dome with balustraded openings, from which more onlookers gaze down upon the staircase. the group on the south side is made up of musicians, while that on the north includes Kent himself with his mistress, Elizabeth Butler, and two of his assistants.William Kent

Ceiling of The King’s Grand Staircase by William Kent by curry15 on Flickr.

Via Flickr:
The ceiling is designed to give the impression of a dome with balustraded openings, from which more onlookers gaze down upon the staircase. the group on the south side is made up of musicians, while that on the north includes Kent himself with his mistress, Elizabeth Butler, and two of his assistants.

William Kent