I put a thin coat over the mesh, and then allow it to cure. The next day the sculpting layer is done. For the tree bark I pressed on a layer of sculpt, then using crumpled heavy duty tinfoil I pressed in the bark texture. Lastly I used a sharpened stick to draw in the lines. A hint here would to to wet the tools or sculpt with water to prevent your tools from sticking.
The last question we fielded this week concerned our paints. We use100 percent acrylic paints in our shop - all hand brushed. We tend to put the colors on nice and bright, then tone them down with glazes. We mix our own glazes using a clear base (without tint). We mix this clear base with the acrylic paints we have on hand at a ratio of 50% clear to 50% paint and then add a teen bit of water to make it flow. We slop this on and then wipe it down with a soft shop rage to remove the glaze from the higher areas, leaving it in the crevices and dips. We like to work from dark to light adding as many layers of transparent glaze as we need - generally two - five coats of color. The brighter the base coats the more vibrant the piece will be when it is done. Below is a picture of the horse sign with the base coats on. It's just too much as it is now. In a day or two it will look great as the other colors are layered on.
Stay tuned...
-dan