The reason it is made up of blocky shapes is because this is a step in a process. Later, the detailing and smoothing will happen when it is made of wax and you carve it away.
The first print turned out well enough.
After some experimentation the 3D print melted beyond repair. I won't do that again!
I made some tweaks on the computer, printed it 25% bigger and painted it yellow.
To see round one of this project, click here: http://kingsleyplease.blogspot.com/2016/02/bringing-tim-biskup-drawing-to-life.html