When I saw this photo I remember my holliday in 2005. I stand on the same POV as you. These are the results. You have clear weather. I posted just for fun and to compare the difference between then and now
This is delicate arch taken from the opposite ridge. We couldn't tell until we got up there just what angle the sun would shine. There was no advantage to the sunset from this side. I suppose that is why everyone was going the other way!!! Duh! We just shun crowds. I like this view though, as the arch looks even more delicate. It is unique in that it is free standing and probably not long for this world. Just in my life time several arches and balanced rocks have fallen.
I cloned out people in this shot... they looked like ants against the sky and around the base of the arch.