Zac in the Battle Bunny Riven Splash?

So here's what makes me very confused. People ship Zac and Riven because of Zac's appearance in Riven's Battle Bunny splash, but the problem that I'm having is where the heck do you guys see Zac in that spray? I see Talon and Swain in the splash, but that's all I see in the background. SO PLEASE! Can someone help show me where anyone sees Zac?