Wordpress Theme design to be edited

I have a theme already that I like allot but I would like to get more variations of it done. Change the header on it, coloring, and the ability to add a logo to the header from the wp-admin side. Once you bid, I will PM you the web site details that has the current design up. That way you can see how it looks now. I am just looking for someone that has a creative mind that would be able to accomplish this job for me. Please SEND past work of designs that you have done so I can take a look at.