A photo-realistic rendering of a large indoor barn with a row of black and white cows standing in a row, facing the camera. the barn has a high ceiling with wooden beams and green lighting, and the floor is made of concrete. the cows are lined up in the middle of the barn, with a red tractor parked in the background. on the left side of the image, a few cows are standing, looking straight at the camera, while on the right side, they are standing close together, with their black spots and white bodies clearly visible. they are all facing the same direction, and their ears are perked up, giving a sense of alertness to the viewer. in the foreground, a single red tractor is visible in the distance, adding a touch of realism to the scene. the overall atmosphere is bright and airy, with the barn providing a warm and cozy ambiance.