Not sure if i should give away my secrets.........haha
I was in conservatory late afternoon just before it was getting to dark so the dice were lit from natural windows light behind me, the dice are on a sheet of thick tinted glass sat on top of a dark wood table.
Used higher iso of around 800 ( i think ) as light was quite dark
I shot in raw and upped contrast & adjusted the black in during processing.
effective isn't it.
Daz