I received so much help from the technician (artist/sculptor in his own right).
It was started from a rectangular block of plaster. I would really like to have completed this in stone but there was a time limit, as it is, I'm pleased with the result.
My tutor commented on the fact that seen from this angle it looks like a fist. I do agree but this was a happy accident.
This took approximately 30kg of plaster, and I had to leave it drying for a couple of weeks. ( wouldn't go in the drying space because it was too heavy for the shelves)