Actually, the background on the bathroom one is my downfall. Since it takes place in a bathroom, naturally I put it there, and stuck the props on the toilet because I couldn't place Joe closer.
The joke is supposed to be about what people can's help bit overhear Joe saying in the bathroom, but it is better done without showing him in the bathroom at all:
[Click to view comic: 'Lous Joe goes to the Bathroom (revised)']
So Joe's one-note characteristic isn't just that he's loud, it's that he yells this play-by-play of his life or everyone to hear.
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...Trot and Cap'n Bill were free from anxiety and care. Button-Bright never worried about anything. The Scarecrow, not being able to sleep, looked out of the window and tried to count the stars.