What do you suppose it means? A suicide note? A farewell to ...what. Dreams are composed of past thoughts and experiences, among other things. This shot reminds me of another shot in your gallery... the grave stone covered with leaves. Interesting, Could they be connected?
I'm thinking, with the lipstick kiss, and what look like older rose petals around it.... perhaps goodbye to an old love... one that needed to be gone, but was hard to let go of... thus So Long & Goodbye... Wonderful imaginitive shot! Best of luck in the contest!