I haven't done much since the weekend, but I did play with gimp a little.
(original is here)
The greyscale is a cheap trick to cope with it just not having very interesting colors. I reversed the blue channel before losing the colors to try to reduce the relative darkness of the twig.
The rest of Saturday's roll contains less in the way of focus problems (I'm still sorting through them) but I am starting to really want the ability to control depth of field.