I don't have a deadline for this piece as I often do. And so I am letting it 'simmer' in between the times I work on it. I have a vision for it, but at this point I am simply getting the elements carefully worked out. There is the perspective to it all, the odd and mysterious shapes of legs and napkins under the table, the very subtle tone and color changes of the walls, window moldings, etc. It is rather like building a house. You first must have a vision for what you want. Then you have blueprints (or the sketch you make for the painting) and then you build the structure. Only then do you return to your vision and make the necessary changes that bring that vision to life. Or else it is just a copy of the physical universe. In that case, might as well just make a photograph!