I also really like the shot, but agree it could use just a bit of touch up yet. Crop a little off the top and adjust the curves so the gravel at the bottom is markedly darker.
You profile doesn't say whether it's ok to edit, so I did a quick one to show what I mean. I think it creates three clearly separate areas of the photo due to the contrasting tone. It's not heavy, but little changes can make a big difference. For me, I find it a little more interesting.