New wallpapers are boring.

[AppleFan91]

I'm cool that they added new ones but hopefully they will add some of the more popular older ones back. I loved the deep blue underwater one. It looked great on my white iPhone 6. Also the iOS 9 wave one is cool and the beach one from like iOS 6

 

[Paddle1]

I think they chose wallpapers that contrast with the brightness of the OS itself and provide better legibility.