Here is a pic of the mold with the next step done. It has been cut with a 1/4 end mill for a little closer tolerances.
Here is another pic, a bit hard to see due to shavings, but I have done a bit of smoothing with the same 1/8 ball mill.
And in an unrelated story, my battle hardened fish are being tested yet again. A snapping turtle is now living in the pond. Notice the foliage he has used in a clumsy attempt at camoflage. This rank amateur poses little threat to my veterans. I just let him go about his business.