I like this line of wallpapers alot. The style is a refreshing mix of actual detail and the power of only form. My one criticism is that in some of them (especially the rarity one) a mixture of background clutter and insufficient colour separation leads to the pony's shape not really standing out from their surroundings. This one has the least of that issue, I'm just kinda commenting on all three at the same time.
colors match perfectly
A may look into Rarity's at some point to tweak colors/contrast.
(I think you've got a typo in your title though).
What typo?