Interested in your shot here as I am also trying the challenge. You have got good focus still at the slower speed. The challenge was to set 1/8 for the lowest, did you try that. They did asked what was the lowest speed that you managed to focus at, was this yours? I think I would like to try and see how what I could do our of interest. Your pretty pot makes an ideal subject.
I've replaced the 1/20 setting with one shot at 1/8 - different day so that explains some of the difference since the bowl had been moved slightly and the light was a little different. This I focused slightly differently, too. Am amazed that you can hand hold at that slow speed.
@thewatersphotos Surprisingly, I think the first (1/8) which totally is against my usual shooting. The accuracy of color is perfect - and the focus is good - not pin point sharp but good I think.
@kathiecb Which is the way I usually shoot! I'm sure if I used one of the others, I'd do a little editing in saturation or lighting - probably couldn't stop myself :)
well done