Character Design
Having a basic scenario in my mind about the story I started thinking about the personality of the father. Since he will end up having no space to relax on the small empty place he will find, because of his own gear, he should be spending for products a lot. I think of him as a bit of a guy who is a materialist, likes showing off and making his presence known to others without being "oppressive" though. He doesn't have power, he is just an average guy so he is trying to gain respect in other people's eyes through the things he owns that are supposed to be the latest fashion, technology etc trends. He is witty, funny and he is trying to come up with solutions to problems that usually do not work (cliche). He is the guy that loves his family. He would check though a woman of his taste as she passes by, when his wife is not watching...
So after making all these thoughts about his personality I came up with some characteristics about his physical look. He is short, not the athletic type, with a round body, but not fat, with skinny legs and arms. He has no neck, his head and body are one, an influence from modern cartoons design of the 1950s.
Below are some reference images of 1950s modern cartoon design.

(im. 1) Ray Patin Productions. Gulf Oil Commercial. Designer unknown. Model sheet. Cartoon Modern: Style and Design in Fifties Animation. Chronicle Books. 2006

(im. 2) Fine Art Films. Petroushka (1956). John Wilson. Model sheet. Cartoon Modern: Style and Design in Fifties Animation. Chronicle Books. 2006

(im. 3) Grantray-Lawrence Animation. Commercial designs by Gene Hazelton. Cartoon Modern: Style and Design in Fifties Animation. Chronicle Books. 2006

(im. 4) Image from the back cover of the book: "Cartoon Modern: Style and Design in Fifties Animation. Chronicle Books. 2006"
Below is an image of Mike from Monsters Inc., Pixar, 2001. His personality, physical look and movements are very inspiring for a character like the one I am trying to make.

(im. 5) Poster from Pixar's "Monster Inc". 2001
Final Look
Regarding the final look of my animation short, browsing through the internet I came across a new animation feature film from Universal Pictures and Illumination Entertainment called Despicable Me. The trailer is showing a group of tourists visiting the pyramids in Egypt. Blue sky and sand... I guess that this is very close to what I would like to achieve...

(im. 6) Still image from the trailer of Despicable Me (Universal Studios & Illumination Entertainment). Release date July 2010.
Link to the trailer of Despicable Me on youtube
Atmosphere (Look & Feel)
One of the things that are commonly used in animation films is the difference of the landscape/background color & lighting in order to emphasize the difference of each location, physically or emotionally. Two examples are the feature films The Incredibles (Pixar, 2004) and the Corpse Bride (Warner Bros, 2005).
At the example of the Incredibles, the colors at Bob's working environment (im. 6) are very pale, the light is evenly spread, there is no contrast. Bob is also depressed working there, because not only he is unable to help people the way he used to -as a superhero- but his boss expects him to work in favor of the company and not its clients. Whereas at Bob's home (im. 8), the colors are more vivid, there is definitely more contrast and the scene gives a sense of warmth. Apart from the fact that there is different lighting used in an office and a house, it is obvious that the color palette and the lighting have to do also with the protagonist's feelings. Bob is not himself at work as he is at home.

(im. 7) Still image from The Incredibles (Pixar, 2004). Robert Parr (Mr. Incredible) working at the office

(im. 8) Still image from The Incredibles (Pixar, 2004). Robert Parr (Mr. Incredible) at home
In Corpse Bride the difference is between the 2 worlds, the world of living (im. 9) and the underworld (im. 10). Although someone would expect the world of living to be the one with the vivid colors and the dull, monochromatic the one of the dead, the reverse is what actually we see in the movie. The reason is that the underworld is a more fun place to be, there are no worries and everyone has accepted his place. There is no discrimination, everyone is equal before death. On the wold of the living it is exactly the opposite. People are pretending and are trying to become something else, they are worried of what will happen in the future and they would compromise in order to achieve their goals.

(im. 9) Still image from Corpse Bride (Warner Bros, 2005). Inside the Everglot's Mansion.

(im. 10) Still image from Corpse Bride (Warner Bros, 2005). Inside the Land of the Dead Pub.
I would like to use that feel of difference in my animation short. A more pale look without much contrast at the first location, that the father cannot find an empty space for him and his family. Whereas the small, hard-to-reach spot, that he finds empty, would have more vivid colors and contrast. Although both locations are close to each other this difference of the atmosphere will strengthen the difference of the protagonist's feelings also. The frustration in the beginning and the happiness afterwards.
.
.
.
.
.
.