Input text: a [pattern] flat wall. a oyster gray light is 20 feet in front of the wall. ground is invisible. camera light is black. a huge bird is in front of and -11 feet right of the wall. it leans 90 degrees to the front. sky leans 45 degrees to the back. a 8 foot tall building is behind the wall. a huge linen light is 20 feet beneath the building. a tree is above and -15 feet left of the wall. it leans 90 degrees to the left. its leaf is lawn green.