Apart from the garnish, the soup is featureless and not that interesting. Back lighting it would not have had the same effect as that previous shot. From above, the round shape of the plate and the diagonal planking create an interesting graphic effect. The table was lit by a 60cm soft box from the right with a 30cm softbox from the the bottom left at 45°. A large reflector opposite the 60cm soft box lifted any resulting shadows.
The planking is in fact pine cladding boards nailed to a piece of MDF. I have a pair of trestles which are at a comfortable working height and I can interchange different surfaces as backgrounds very easily.