Nice set.
I was wondering whether to mention that #2 and #3 didn't really look sharp to me, but the difference when I clicked on them and they came up a bit larger was very noticeable, especially for #3. Presumably the site resizing is having a softening effect. (#1 doesn't change when I click on it. Presumably it is too small to need resizing.)
Anyway, well done braving the cold to show us something unusual and eye-pleasing.