Finally, after much trial and error, we nailed the wall. Although we're yet to literally nail it together, it's in its final stage. Here's what the texture looks like under white light.

And here's what it looks like with the ladies' heads in it.


Once we put together the foam boards we realized that the seams were a bit too obvious and distracting. So we went out and bought 3 big boards, and cut holes through them.
Then I got started painting stucco and creating the texture with toilet paper. Took me about 6 hours to finish it. I was able to build the texture exactly the way I wanted it. Success!
A friend of mine, Shyam helped us build the wooden framework. Today, I started gluing the plastic planks on to them to actually build the wall. Right now, it looks very flimsy, we may need to stabilize it somehow. The next step would be to stabilize it and then use paper, papier-mâché, toilet paper and primer paint to create the a rough, grainy texture, as seen on the story boards.
Meanwhile, Ariel Chisholm, another vizzer is working on surfacing/lighting the lotus.