Front & Back T-Shirt Vector Design

Industry: Sports and Fitness
Details about the apparel: Team Shirt for Tough Mudder
Content to include on the apparel: Mudd Maniacs
Ideas for the visual style: Bold
Extra notes: Hi,

Last year I designed a t-shirt for our Tough Mudder team (an extreme 12 mile obstacle race). The name of our team is 'Mudd Maniacs'.

I've attached samples of this design which I had originally created in Photoshop (without knowing about correct vector design at the time). Although we managed to get them printed ok in the end.

We are looking for a new t-shirt design for this year, which needs to incorporate our team name and a symbolic image representing the event and welcome ideas / proposals for this job.

Just to be clear, this job is not for modifying last years t-shirt design, but rather creating a new design (the one I did last year really wasn't very professional and of the desired quality).