Here's the progress so far. Tuesday I dug out 2 trees, but really didn't have a game plan. Yesterday was rain all day, so no progress then. But I did decide that I needed to plan what I was doing.
Game plan:
1. clear the brush
2. take up the old rotting bed borders
3. cut the thorn bushes and trees growing up through the fence, dig out the trees
4. dispose of the debris
5. till the area
So here's my progress today. I was able to clear out the brush and take up the rotting bed borders.
Here's a couple of shots of the garden area, just 2 different angles.


And here's the brush and other debris I took up. I wish I could get away with just dragging it to a different part of the yard to let it rot. But the wife is not having that.

Hopefully tomorrow I'll get that huge thorn bush and the rest of the trees cut and the dig out a tree or 2.