Taken at Great Sand Dunes NP.
123mm f/13 1/160 iso 100
Hi @Mario_Cornacchione. You did a great job of processing this image! I love the lines that the highlights create. I like how you have the top two lines starting at the bottom third and then reaching up and into the top part of the frame. Also I think you positioned the bottom dune perfectly. The texture isn’t cut off by the bottom of the frame and there is plenty of margin for it.
I feel that this could actually be two images as the two lines diagonal lines compete with each other for the viewer’s attention. Try cropping it to make it two images and see if they might be stronger separately.