He was a great bloke, that's for sure. He'll be missed.
To address your point, I didn't forget to add the Joker, I simply made a conscious decision not to include a picture of that character. Let me explain: if you look around dA (and pretty much anywhere else for that matter) whenever Heath is mentioned or any tribute is paid to him, his role as the Joker is almost always given centre stage. That is completely understandable of course; not only was it one of his last roles, it was also one of his best (I don't want it to seem like I dislike him in that role, or the film in general, because I really don't), but so often with these things it seems to be the ONLY role he is being remembered for. It seems like when people talk about him now the only thing they talk about is how good he was as the Joker, which to me is rather sad. Simply remembering an actor because of one role, regardless of how good it was, is not the proper way to remember them in my opinion, especially someone with such an interesting filmography as Heath.
In the end, I decided not to include the Joker in this tribute to try and get people to remember Heath as an actor and, more importantly, as a person, not just as a character in a movie. To me, that seems like a much better and far more respectful way to pay tribute to a young man who's life was cut tragically short.
I hope that clears things up.