I'm so glad to see this! Being a big Calvin & Hobbes fan and especially the snowmen that Calvin makes I'm more than delighted to see that someone (else) took these things out into the snowy reality. The quality is surprisingly good; just a shame the blood-red-colour came out as pink.
A bit further down on the page are some contributions from other people. If I only had some snow, time and a park here in London then I'd contribute too.