I'm getting back to basics. Meaning, I'm painting a series of outdoor still lifes in bright sunshine, in the impressionist manner I was taught. After a long winter painting indoors in artificial light, and painting in oils and in a slightly different manner, I feel the need to set myself tasks. I've already painted Black. Then I chose the opposite of black, and that is this painting White. (I know, really innovative titles...)
Both black and white are not really considered as colors by many artists. The challenge is to really see the color of light that is reflected off the objects, and paint what I truly see. I may exaggerate just a tiny bit, to show how beautiful the colors are, and to make it easier for the viewer to see these colors. I'm, after all, trained to perceive them, but the colors can't be too subtle in a painting -- they have to be visible to the average spectator.
The most obvious difficulty when painting outdoors -- even if it is in the comfort of my own back yard -- is the fact that the earth turns around its own axis. The visual effect is that the sun appears to move, which in its turn means that I only have about a maximum of two hours to paint before the light has moved and changed too much to continue.
My white objects all consist of different materials with different surfaces. The vase is of semi opaque glass, while the mug is white plastic with a dull surface. And the flat bottomed bowl is of shiny ceramics, with a high gloss from the glaze. For both the mug and the vase, light is shining through them, creating more difficulties in rendering them true.
I start with a sketchy scribble, to place the objects within the edges of the paper. Then I use a different color for the drawing of the outlines. Note that I draw the whole object, even if it is behind something. All this is done as quickly as possible, as the sun is inexorably moving.

Then I build up a solid base of color by first filling in the shadows, and then adding the lights. This underpainting sets the color of the light.

The next step (above) is to render the average true color that I see on top of the underpainting. No details, no variations, simply the average. At this point, the shadows are locked in. Even though they move, I will not chase them and change things every 15 minutes.
Then I start to give volume to the objects, and dimension to the flat planes (below left). When I'm happy with that, I move on to reflections and details, corrections and edges, and finish the painting (below right). This phase is astonishing, as what is a rough messy painting suddenly transform into such a semblance of reality that people ask me if I painted it from a photo (that is, copied a photo). While I only painted what my eyes saw, and quickly at that.

The difficulty here was to keep the shadows on the translucent objects dark enough, so the shadow part would be distinct from the blue cloth in light.
Here is my very simple workstation (exposed for shadows, so the sunlit parts whiten out):

The next project is already on its way, and that will be Blue. I knew I was setting myself a task which is a bit too difficult, but I did want a challenge. We'll see what happens.