An alternate human made of cyanides would likely have a very different physical and biochemical makeup than a traditional human. Their body would be highly toxic, as cyanides are poisonous compounds that can interfere with the body's ability to use oxygen. As a result, this alternate human would likely have very different metabolic processes and would be unable to survive in an oxygen-rich environment. Additionally, this alternate human may have a unique appearance, with possibly a blue or green tint to their skin due to the presence of cyanides in their body. They would likely have to consume a diet that is very different from that of traditional humans in order to survive, as many common foods contain trace amounts of cyanides. Overall, an alternate human made of cyanides would be a fascinating and dangerous creation, likely possessing unique abilities and vulnerabilities that set them apart from traditional humans.