I did try this method except with a DA sander but it didn't give me the depth or 3D look I was looking for. And since I an covering mine with envirotex the look was more important to me than the scatches. I however do think yours looks a little more professional looking (if that is what you did to yours)
Completely understood. The desired effect that you are personally looking for is most important.
I tried the brush with my drill, five different pads with my sander, and several techniques with good old fashioned elbow grease.
Plus I experimented with five different alloys (c110, c220, c230, c260, c510) with all the different textures to determine which combination achieved my "vision".
The lighting was a crucial aspect as well. My garage, workshop and final resting place all exhibited different shades of the same material. In the picturs I posted earlier, the final material looks much more light and yellowish than it really is. Even the difference between holding it horizontal and vertical (on the panels) changed the color. Here is a basic color chart for the various alloys.http://www.metalreference.com/CU_220.html
Point being, you never know what you really want until you experiment. I had settled on several techniques/combos, only to try one more and changing my mind!
I think your project turned out fabulous. I like the idea of the copper footrail as well. Because I have never seen it done before. I love new and unique looks.
Another poster here might not some aspects of yours, or mine. In fact they might hate mine completely. But what we have done is shared our projects for others to critique and change to complete their "vision". The exchange of ideas is one of the best things about this forum!
One definite plus in all this is the use of nonferrous material in different ways. The more copper and copper alloys used, the better for the industry I call home!