Steel is known for its strength and durability, making it a popular choice for large sculptures and intricate designs. It can be finished in various ways, including polished, brushed, or painted, allowing for a range of aesthetic options. Copper, on the other hand, offers a warm, inviting hue that can enhance the romantic atmosphere of a wedding. Over time, copper develops a unique patina that adds character to the piece. Aluminum is lightweight and resistant to corrosion, making it suitable for outdoor events where weather conditions may vary.