What are you asking? I'm afraid I don't understand. I am not the artist, and I think it's pretty obvious to everyone that this is a screencap from the show. I don't know who exactly drew and colored this scene. The Simpsons has so many animators, it would be impossible to know which one(s) to credit. Also, you did not give credit to the artist(s) either. I just checked the link you provided. So why are you telling me to do it when you didn't do it yourself?
Ohhhhhhhh, I thought you were showing me a copy of the picture you'd posted in your own gallery. >_< The link even has your username in it, which is confusing.
I'm pretty sure he didn't draw it, because it doesn't match the style of his other Simpsons art at all. Not when you really look at everything else he's drawn in his Simpsons folders.
Regardless, I did not get my copy of the picture from him. I got it through Google Image Search, where I found it posted on a third party site of random Simpsons screencaps. There was no one to give credit to, as no names were given by the posters. If I had obtained it from DA, or any other site where an artist took credit for it, I would have asked permission to use it first, and if given, I would have credited the artist afterward and provided a link so they could see how I used their pic. I absolutely HATE it when people steal art and try to claim it as their own. I've had it happen to me, and I have seen it happen to friends.
TheFightingMongooses did not draw that. He/she just slapped their username on it because they are most likely the person who screencapped the image in the first place. This is from a deleted scene in "The Great Louse Detective," season 14, episode 6. There used to be a video on Youtube, but now I can't find it.
In the scene, Marge has Bob sleep in Maggie's room because they've "both tried to kill people." He's given a way-too-small Krusty the Clown blanket to sleep on the floor, and as he lies there in the dark enjoying his freedom, the moonlight shines through the window and through the bars of Maggie's crib, casting shadows across Bob on the floor that remind him of being in prison, and he grumbles.