Here we have the three Longbottoms in a variation of a scene from OotP. I wanted to make sure the wrapper was the brightest thing in the piece, and in Gryffindor colors even though Rowling has stated that the wrappers held no real significance.
Personally, I believe the wrapper stood for hope or showed that she still loved and cared for him. I mean, it was all she had to give him for Christmas, and Neville was kind enough to accept it. A Malfoy wouldn't do that. I guess it kind of shows loyalty.
Oh, this is one of the saddest part in book 5! I have to say that this is not all how I pictured it, but it comes close. There is a lot of emotion in that scene in the book, and I think that you captured it here.