Thank you everyone for your comments, I had individual responses but they didn't upload and I'm lazy. Sorry, but thank you all.
I got back from my vacation and continued working on my Jungle ruin. Instead of laying the brickwork then paint, I wanted some of the bricks to be stacked and semi buried so I layed the groundwork before giving it a base coat. I made the soil from spackle, water, glue, and paint. Then I added real roots from a rosemary plant I killed, but kept because they looked like little trees. The rocks are crushed oyster shells I use for my aquarium, they are more random and jagged than the model train variety you get store bought. I let it dry for 2 or 3 days and sprayed a base using acrylic grey.
Next I'll dry brush, wash and so forth. Then probably add a top soil and plants.
