When it comes to watercolor I don't use it traditionally, i.e. with few strokes and bold colors and masking out white areas. In fact, I often use my watercolors the way I use oils, with an underpainting and lots of thin layers, building the color up gradually to desired intensity.

So... time for underpainting. For this stage I took some ink in burnt umber and applied outline and basic shadows all over (I use inks by Golden). I used #0 brush for the thin lines and details, and larger brushes (#6 - #14) for larger areas where I applied thin washes, like on the drapery. Where I wanted the shadow to be lighter I diluted the ink with water.