The pop corn stuff is call "rock stone"..at least thats what we tell the contractor that we want our wall spray with it. I use "stucco" a few times in 2d projects using the texture that comes with Corel Paint. Your cheapo cam...what about putting a masking tape over the flash and use a power torch light to brighten it up just nice? True photography has never been easy...LOL! Two are things you can do is chop down the trees in and around the surrounding or chip up a chunk and go somewhere brighter, enough not tio initiate auto flash...talking about hardwork...LOL!