Oh, sorry. I actually found it up for stock here: [link] I clicked the wrong Blue Nexus to get to this page... but it appears to be the same image...? Did you give permission for it to be posted as stock?
I have my psd, so I can take it off and use a different image if that's what you want.
Make sure you credit it to Moonchilde-stock then... it is my stock account. I just wanted to make sure you got it from the right account and didn't assume that my wallpaper on this account was stock.. It happens all the time..lol.. Thanks