Calling All Tumblr-ers?

Heyy everyone! Ikemarth here!

I don't know if I'm suppose to post something like this but-

On my travels across the internet, I came across someone's tumblr. Looking at there images, I stumbled across this image --->

I would really love to use this image in a wallpaper, however I can't remember where I found it, so I don't know if it is fanart or not >_O or at least a high resolution version of it because it is just amazing!

So would it be fine if I ask for your help? If you come across this image, may I please know the details of it? It will be very much appreciated and I will love you forever! ♥ ♥