I was really, really lucky to get that first picture.
My rock pile is huge, but made so that there's tons of space and water that doesn't move inside, since there's so much current throughout the tank. In fact, there's about ten holes in the rocks that all lead to different places. You can see the red Betta has found his home and claimed it, lol.
I have one more that's absolutely beautiful. He's a dark steel color with mustard gas orange/ brown fins and a hard black outline on them. He's staked a claim inside one of the higher, flatter rocks, and doesn't like to come out too often.
I wasn't really trying to get pics of the females, but if you look in the backgrounds, you're bound to see one or five.