Creating bronze sculptures with intricate undercuts or negative space presents a unique set of challenges for artists and foundries alike. One of the primary difficulties lies in the mold-making process. Traditional sand molds struggle to capture fine details and deep recesses, often leading to breakage or incomplete casts. The complexity of undercuts requires specialized techniques like piece molds or investment casting, which demand meticulous planning and skilled execution.

Negative space introduces structural concerns, as thin or unsupported sections may warp or crack during the pouring and cooling phases. Artists must carefully balance aesthetics with the physical limitations of bronze, ensuring the sculpture can withstand its own weight and environmental stresses.

Finishing such sculptures also proves demanding. Polishing and patinating hard-to-reach areas require specialized tools and patience, often extending production timelines significantly. Despite these hurdles, mastering these challenges allows artists to push the boundaries of bronze sculpture, creating breathtaking works that showcase both technical prowess and artistic vision.