Wow you have been busy with all of that DIGGING.  Sounds like it has all been worth it as you look at it now.  I wish I had more POWER to dig more...I'd have my whole back yard dug up and turned to flower beds and garden by now if I had the Energy!!
Oh well, little by little it is happening...after only a couple of years it has gotten better thanks to plants from swap and little plant sales, etc... so fun to learn about the plants that do well in this new climate that I now call home!!