Okay so I'm making a poster for my story and i'm kinda new to photoshop so i don't know how to make animation. Can anyone help me please?

poster is for http://www.asianfanfics.com/story/view/350453/she-s-a-ma-ma-ma-ma-machine-romance-exo-exom-luhan-kris

I want this picture to be animated like you know the wind motion kinda thing

And also want Kris and Luhan to switch. Like in one second its Kris's pic showing the next its luhans