I'm so hyped that I couldn't wait for the official wallpaper of MoCo, so I've made one myself.
I tried to go with amalgamation between the box art and the same style as MoCr, like this...
I used that MoCo picture from cache.lego as the source. And these are what I get.
I'll share it here in case anyone is interested.
EDIT: Add a bigger version!
EDIT2: Add a version with crackling energy as requested.