This isn't any particular red rock, but reminiscent of many such rocks around the world.

Creating this many pillars individually would have been impossibly complex. I instead made a solid block, with a grid of negative cylinders inside, carving out the archways.

I was planning on a set of fairy images, but I had so much trouble getting the wings similar to what I wanted, I may not do as many as I had originally planned.
The flower is a slightly modified model from Ray Dream Studio.