I used my spot metering mode on the reflected late afternoon sun as it illuminated the rough texture of the wall at left. That reflection on the texture becomes the focal point of this image. I allowed all else to fall into silhouette here. The walls on either side are drawn together by the repeating diagonals -- the shadow at lower left and the slope of the building at upper right. I introduced the silhouetted leaves at top to draw the eye into the picture from the top, while the deep blue sky adds a striking backdrop to this geometric composition.