From the chapter "The Silver Doe" in Deathly Hallows. Yes, I know. Everyone and their mother has done this one. But it was such a sweet scene. I couldn't pass it up.
I know there wasn't snow on the ground in the scene, but I always just pictured it anyway. Made it more miserable somehow.
I'm trying to power my way through a stack of old, unfinished drawings on my desktop so I can get to work on my portfolio things. This one has been sitting around for a few years.