Yeap this usually works, talk to the original author ask him to do the edits himself if he desires and tell him millions will use it... That usually does it...

If possible have the wallpapers be cohesive, they can have different subjects and styles, but it's nice that there is a "flow" among them...
For example all of them have a subject in "focus"...
Or all of them use an obvious rule of thirds balance placement...
Something that when the user opens up the UI looks like a cooheseve set...

Do you have an example of those as well?

Is it just the blue image?