Design cow mascot for The Wandering Cow -- a frozen yogurt business

The Wandering Cow

The Wandering Cow will be a self-serve frozen yogurt food truck business.
The food "truck" is an Orion II bus, pictures attached.
We have started designing our website, please take a look: http://www.thewanderingcow.com/

Wanda the Cow will be the mascot for our frozen yogurt business. We are searching for someone to design our happy, energetic cow. We would like two pictures of Wanda: one a head shot, and the other a full Wanda, standing on all four legs, from the side.
Wanda is a milk cow, but not an ordinary cow. She is fun, but not goofy. She is a good-looking (with udders), but she's not too girly. She doesn't have horns, but she has character. She might be black and white; she might be black and white and blue (not powder or baby); or she might be other colors.
When you see Wanda for the first time, you'll think, "That is one cool cow."
The bus wrap will feature large picture(s) of Wanda: possibly one on each side of the bus. Wanda will most likely also be on cups, shirts and hats.
Let your imagination run wild. Have fun with it.

The finished bus will not have any side windows, so the images of Wanda the Cow may stretch the length of the bus.

Note: you are not designing the wrap for the bus, you are just designing Wanda the Cow.