A large, human-sized sculpture, that is, the size of an adult human, anywhere from 4.5′ to 6.5′, is currently around $5,000. That number is subject to change. Labor, materials, and complexity of the project determine cost. This number is ballpark.
I also make smaller work. Something half the size is a little more than half as much. And so on. I do currently build pieces that are under $500.