Red Rock in B&W

I shot this on the last evening of my week long trip to the southwest last spring. I had returned to Vegas for a business seminar, and I thought I was done with any photography. However, after my seminar ended late in the day, I saw from my hotel what looked like a nice sky. So, I made a beeline for Red Rock Canyon, arriving right at sunset. I quickly drove the Canyon's scenic drive trying to find  a comp in the direction of the clouds with a nice foreground. I stopped at this high viewpoint. I didn't particularly care for the rocks/slag in the foreground, which I assumed was placed there as part of the viewpoint construction and/or maintenance, and there were a number of people milling about taking selfies, but I loved the juniper and the rest of the scene. Not knowing if I would come upon anything better farther along the scenic drive, I went with it. The sunset colors are pretty nice, but I prefer this B&W conversion. Amazing that this is only 15 miles from Vegas (you can actually see the Vegas skyline if looking left from this spot). D600, 18-35 @ 35, .8, f22, iso 200, cpl, gnds (hh). I darkened the slag/rocks in the foreground to try to minimize them and make the foreground look more natural, but I am curious if others think this is a deal breaker? Suggestions and other comments welcome.  

p.s., to the mods, if the rocks/slag in the foreground is too much "hand of man," feel free to move this.