My other line of experiments have been with plaster. Initially I was casting a square piece of plaster, then breaking it up, gluing it back together, then grouting it (a lot of work indeed). After a few tries of these other methods it hit me it would perhaps just be easier to carve the shape directly into the plaster.
Enter attempts #5 and #6:
Attempt #5
Attempt #6
#6 is getting close to what I've been looking for. The painting was done in these steps (all paints acrylic like you'd get at your neighborhood craft store):
- Did a wash of light gray over it
- Did a wash light light green over it
- Did a wash of burnt umber + light green over it
- Dry brushed black
- Dry brushed white