NOTHING! It is gloriously beautiful. This is the kind of soft, welcoming snow storm that makes you want to curl up with a cup of hot chocolate and a favorite book, which you won't actually read because you'll be gazing out the window watching the fat flakes coming to rest on a tree limb, where they are going to stick and turn your whole world into marshmallows.
There is nothing wrong with this picture. It's a lovely picture.
The error is with the date. It is April 9th.
One of these things just doesn't belong here.