Explanation requested

[mirrorshard]

This painting is annoying me slightly. I like the way it turned out, but the significance of two important things is confusing me: a) the frame, and b) the juxtaposition of stark black branches and warm green background. I know they both happened for a reason, but not what it is, or even whether it's the same one.

Clearly, this is the kind of artistic conundrum that can only be solved by an appropriate title. However, none occurs to me that I'm happy with. Any suggestions? Anything I decide to use gets a pint, subject of course to being in the same pub at the same time at some stage.

(Administrative note: Acrylic on canvas board, 8" x 6". I've since given it its first coat of varnish. It'll probably end up with three, for a suitably even density of gloss.)