 To create a sense of scale and depth when they were photographed,  the castle miniatures were placed into large tanks of water to which  disinfectant (Jeyes Fluid) had also been added to make it slightly  cloudy. The post production house responsible for compositing and  other special effects were in awe of the skills and ingenuity of the  traditional model makers, but exasperated by the variability of the  images that this "organic" method generated, making their  colour