Patterns in ice

At this time of year, I’m lucky to get in one good excursion per week, so I hope it is understandable that I’m making the photographs last through a week of blogging!
I loved the pattern of frost on the bridge.  It was late morning — nearly noon — when I took this picture and the temperature was just edging past the freezing point down by the river.

An hour later, the frost had been melted by the sun.

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Below are four photographs showing four different views of the same pattern:

Which one of these four is your favorite, and why?