Gwilym,
I'll warrant that the air was whistling while you were turning the second axis part of this form.
You've rather found a cause with carving your finials (for want of a better description). Is it feathers? And the rest of the work that has gone into it, fantastic.
I can see the concept of the water, but the green is a not very water-like colour to me. Can the paste wax have colour added to it, to produce a more blue shade.
