Underpainting for added brightness

I underpainted the area occupied by the grapevines with a Naples Yellow Light to brighten the colors that will follow and then started defining the negative spaces between the rows of vines with a shadow inducing combination of Alizerine Crimson & Ultramarine Blue loosely blended together roughly half & half.
Lots still to do so come back soon and see how far it's come along.

    Mahalo & Aloha.
       Timo