Well.....Here is what you do when you have a few hours to kill at a job site.
1. You start with a pile of boulders.
2. You tear out old RR tie retaining wall.
3. You build new retaining wall with previously mentioned boulders.
4. You dress it off with a fresh load of gravel.
5. Strategically place decorative rock in the right spots
Wa-La you have a brand spankin' new driveway with decorative accents.