I have added more colour to the bowl using indigo, burnt umber, chrome yellow and alizarin crimson. Some of these colours are not discernible, but affect the colour temperature non-the-less. There will be a couple of highlights added when the paint is dry, but I am happy with it at present.
In the rest of the painting, I have added the underpainting to the large floor area on the bottom right of the composition. This is a polished concrete floor with shadows and reflections to be added at a later stage.