Creating a seamless transition between different metal textures in a sculpture requires a combination of technical skill and artistic vision. One effective method is welding, where metals are fused together to create a smooth, continuous surface. Another approach involves using patinas or chemical treatments to blend contrasting textures visually. For mixed-media sculptures, mechanical fasteners like rivets can be hidden beneath layers of finishing work. Grinding and polishing are also essential for refining edges and ensuring a cohesive look. Finally, consider layering techniques, such as hammering or etching, to gradually shift from one texture to another without abrupt changes. Mastering these methods allows artists to achieve stunning, harmonious metal sculptures.