Ok, here are some pictures. You can see the Catmint and Sedum in the middle. And the ugly retaining wall. The bush on the left will have to go. The camera was facing East for this picture. Also included is a top view. And you can see that the ground down slope down a little from left to right (north to south) but it feels pretty flat when you are standing on it.
And no, I don't have a color preference. But it would be nice if everything was bright and colorful.
Thanks again for your help!