No, it means a small, hard-to-spot giggle. It started with a guy who wasn't given credit for creating a video-game, so he created a room you could only get into by moving a near-invisible block from one room to another and on the floor of the hard-to-find room wrote "Created by *whatever-his-name-was*". You will find at least one Easter egg in most video-games these days, they are worthless for the game-play itself, but it's quite fun to think you can distract the final boss with a fishing pole.
In this case, the Easter eggs are in the bottom corners.
LoL sandwich behind them in the left corner and the egg is under her hand in the right corner.
That aside, THIS ROCKS! I see art all the time that makes me thing "NO, YOU BASTARD! YOU ARE CRUSHING MY CHILDHOOD!" but I don't get that from this. LMAO I think it's completely gorgeous and now I'm going to have to stalk you to see what else is in here. LoL I started doing a disney pin-up line but I haven't posted any on my deviant yet... Kind of have to finish them first. <3