Under the dunes

I can see where you were headed with this one, but it looks a little flat. You could try boosting the mid tone contrast a bit and/or trying a conversion to B&W. You might also consider cropping out the sky for a bit of more abstract look. I like the lines and the curves: You should capitalize on those, I think.

--P

I knew where this was from the thumb--i was standing at this very spot just a week ago! Last time i posted a shot with these patterns, someone suggested they looked like truck tire tracks, which was kind of a downer, but i thihk they look pretty cool personally. I see Preston's point, but i would leave the sky here--it adds important context i think. Id just bump up the contrast a bit.

Before even reading any of the comments, I thought of a B&W conversion (darkening the sky in the conversion) and a strong boost to the contrast. The image has nice strong lines and perspective.

I like the balance of color and light. Compositionally, I sort of wish I could see the background elements more with less dominance of the foreground shape.

For me, this is all about the huge sweeping pattern in the foreground and I think the version presented here shows that nicely. Yes, going to b&w would emphasize that pattern and some local dodging/burning to even out the tones would add even more emphasis. I like the background he as it add some interesting context, but I can also see a version where you crop at the top ridge in the middle ground, then it's entirely the pattern.

Fabulous radical use of line.