Image imported from derpibooru 
Original Description:
 
Ever since Gallus became a Royal Guard, he has been hungry for power … to protect and serve! However, when your friends are tinier than ants, you have to get creative if you want to have fun with them. What better way to show his power to protect – than to hold Canterlot between his toes!
 
Don’t worry, Princess Twilight. When Gallus said the kingdom was in good paws, he meant it! Everything he steps on is magically protected, as good cartoons should be.
 
So, Gallus, how did you get so big? Discord swears he had nothing to do with this (nor has he been interested in attempting such a big feat). As part of his duties, Gallus has been around Grogar’s bell, along with the artifacts Cozy Glow once used to siphon Equestria’s magic. He also found a mysterious device that was left in pieces on the ground … later identified as Sci-Twi’s magic-sucking device.
 
Gallus swears he can’t explain what happened. It’s like he got overwhelmed with the magic of friendship! Could it be … that the Tree of Harmony, herself, is trolling with us?
 

 
Commission by Tsitra360. I count myself as the second artist because I played a major part in directing the composition.