A Sexy Cow or ASC LLC T Shirt Design

Hi, I am building/running a Company called A Sexy Cow LLC. I am needing a shirt design for my first T-Shirt Designs for my market. I have a current design that I had done a while back at free of charge from a friend and while I love this design, I want it to be cleaned up. And I say cleaned as in I want it to be drawn much cleaner and in a better/different style(I don't really know what style I want it to be drawn in, so I would like to hear thoughts on potential artists who want to take this job).