Construction

After cutting lots of paper and cardboard templates, finally I can start making. I am starting with the tallest piece as (I'm thinking) that one will be the biggest challenge:

First problem is solved - keeping the slab of clay upright and vertical:

Adjusting the thickness of clay that can be extruded for constructing the wall. I like the bevel  edge on the extruder die, it will speed up construction and minimize handling: 

First and second row in the making:

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And another template, this one to keep the curve consistent:

First piece:

My plan seems to be working well so far:

The one on the left is just made, and the one on the right has been refined: