http://www.post4prizes.com/ Let me know what you think of the new design and let me know if anything can be improved.
To spice up the look and design That text is giving a dull look to the site. No need to create a big logo just a small logo which is attractive is enough
The design look very basic, I think you need to get away from the defulat colour scheme as far as possible or no one is going to take the site seriously. For people to spend their time posting in order to get prizes they are going to need to be convinced you will pay out.
I don't want to add a million and one colors, that just makes it look unprofessional. And simple is often far better.