Terry,
This little beauty has slipped pass, it's too nice not to comment, just where do any of us start with a design and can we say we've finished, it is with a painting, the Artist can say it's never finished, something can always added and in some paintings taken away, painted over, even a complete canvas.
You have kept to a crisp an free flowing form, I wonder as too the flow from the rim into the base, as it's not clear.
Well done and thank you.
David