Perhaps you can feel the influence of the luminous spooks at the back of my mind when I made them.
By rights it should have been Algernon Suit of Armour as the Knight, but I picked Winnie, astride her trusty broomstick. As you know Alf inspired the apparition who takes the role of Rook. Sidney Skull and Crossbones was behind the pawns, and the Queen is loosely modelled on Tilly, although in this manifestation, she takes the form of a vampire complete with flowing dress, fangs and candlestick.
For the King I decided on a headless Tudor fellow, standing in front of a tombstone. Finally, in the role of Bishop is a monk, invisible other than for the habit he wears.