Uhh..did you use the provided source or draw something that looks like it. I though the idea was to use the source. But, then I've been wrong before.
No, that's the source pic. Just run through some filters and erased some wall textures....I guess. I must say it's done pretty well. Maybe the straight lines (like in the door and the windows) are a bit too straight compared too the added cartoon.
Yes, it is cute, wish we knew how much is Mr. Natural and how much is the hidden author.