The 5th is actually quite good not only in terms of quality. If you want, you can see my study of how would I edited it (because it looks like the photographer don't know what contrast, other than center composition or white balance means
you can find edited version from this photographer but size is smaller, your version is not that far from his edited version, tho he had advantage of editing raw file.
If you want some good quality Petra pics, you have to follow or ask sport photographers for big versions or even raw file itself, everything you find on blog sites would be not edited quick raw-jpg conversion photo just to post something faster or smaller edited version for magazines\big ass sites, only handful of photographers post good big versions online, mostly they post small size that is not suitable for wallpaper
btw, as for sib campaign photo, background is simple you can easily delete captions yourself without noticing they were there, tho i remember i saw somewhere original photo, if i find it, i will give you link
PS: I totally given up on wallpapers or screensavers, i prefer blank screen without any pics or shortcuts icons