Upload & Sell: Off
Most are good in themselves for different reasons.
1& 5 work well as establishing shots for sequence of tighter crops to follow. If forced to choose one shot out of the entire set to show a stranger that had never been there (like me) I'd pick #1 because it matches initial impression you might have when walking up and looking over the edge in to the Canyon. I also has the strongest implied phallic imagery with the canyon providing the same scale as the body would nude. Looks like the Mohel botched the job on the poor guy in the foreground — or is that Wayne Bobbit? That's the type of "1,000 word" story that come to the mind of the viewer that wide shot in #1 that is missing in the other closer shots of the details and stratigraphy of the columns.
7 -10 say more about how camera POV and distance can change the appearance and impression of objects. By comparison they give the view a good sense of what it would be like to walk round the space as you did, but none of them stand out as well as #1 for me in terms of overall interest and story line, Seeing #1 and using my imagination I can see 7-10 in my minds eye. But it's more difficult / impossible to get a good mental impression of scale and relative position of the wider scene from 7-10.
2,3,4, and 6 show one feature and lack the context of the others. If seen in a series starting with 1,5 they would work better IMHO shot closer / cropped tighter so pull the viewer close to the details and texture of the rock so the viewer can tell whether it is sandstone, limestone, etc. Those close-ups could be inserted between to 7-10 in the series to change the pace visually and as "cut-aways" separating the different points of view seen in 7-10. For example in a series I would follow 7 with a close up shot of flat rock balanced on top, or one of the texture in the edge sharply focused with OFF second column in the background.
You've got a good range of shots to choose from, you just need to decide how best to edit the story. #1 tells it all at a single glance leaving the details to the imagination of the view. If you choose to tell the story in a sequence of different POV you select in a slideshow or multi-frame print layout they viewer gets a better feel for your impression of the space.