We've got a 50' stretch of yard that has a very gentle side to side slope that we can't easily eliminate (fences on each side built at different heights). We want to build a retaining wall along that stretch. The wall will be 6" to 10" high. (Two or three layers of 4" block with the first layer dug 2" below the lower elevation.)
Can a retaining wall be built at a gentle side to side angle so that the top of the wall is flush to the gently sloping level of the higher elevation? We'd like to avoid stepping the wall. Are there any special considerations for a wall such as this?
Edit: the reason I'm asking is, much of what I've read says it's important that the first course of blocks is level both front to back and side to side.
Edit 2: Mark's post taught me you can add photos, so here are some: