prompt: Minimalist black-and-white photograph featuring the upper portion of a crane arm extending diagonally from the lower-left towards the upper-right of the frame. The crane arm is constructed of white-painted triangular truss sections with visible bolts and lattice-like support beams, creating a geometric and industrial aesthetic. The background is a uniformly dark gradient, transitioning from black at the top left to a softer gray at the bottom right, providing stark contrast against the white machinery. High-contrast monochromatic palette, sharp focus on the crane structure, shallow environmental context, negative space dominates the composition, modern minimalist design, smooth textures, utilitarian, visually balanced, clean industrial elegance, low-angle perspective.