When comparing bronze and plaster sculptures in terms of mold-making complexity, several factors come into play. Bronze sculptures require intricate and durable molds due to the high-temperature casting process. Typically, a lost-wax method is used, involving multiple steps like creating a wax model, investing it in ceramic, and burning out the wax before pouring molten bronze. This process demands precision and expertise, making it more complex and time-consuming.

On the other hand, plaster sculptures are simpler to mold. Plaster can be poured directly into flexible rubber or silicone molds, which are easier to create and reuse. The material sets at room temperature, eliminating the need for high-heat processes. While plaster molds may lack the durability of bronze molds, they allow for quicker iterations and adjustments, making them ideal for prototyping or less permanent works.

Ultimately, bronze mold-making is more complex due to material and technical demands, while plaster offers a more accessible approach for artists prioritizing speed and flexibility.