Robert L Calvert

The inner frame/exoskeleton is painted a deep, dark metallic purple to give the model a sinister, organic feel, almost like exposed demonic muscle beneath the armor. The color should be rich and shadowy rather than bright or cartoonish, with black shading in the recesses and subtle highlights of lighter metallic purple on raised edges to create depth. When viewed through armor gaps, the purple frame contrasts against the blue-and-white outer armor and copper accents, making the mechanical details stand out while reinforcing the dark fantasy "Nightmare" theme. The finish should look durable and metallic, with selective dry-brushing and light weathering to emphasize the frame's structure without overpowering the rest of the build.