I need a poster with a comic book cover theme...

Information for the business: We sell sports supplements
Industry: Sports and Fitness
Design details: We are a company that operates a group of 24 hour gym's and sports supplement stores.

We are wanting to start a marketing campaign that is based around comics.. We are looking for a "superhero" to feature on our posters.

The initial poster (size A0), would be in the form of a comic book cover featuring a light shining into the sky (think batman) with our logo in the light.. a catch line somewhere on the page "The Protein Store that never sleeps" or something similar... and our superhero looking up at the logo in the sky. A few other items that must be on there are: 24 hour dispatch, free shaker and free delivery, and our website.

There is potential here for ongoing work if we are happy with the initial design.
Ideas for the visual style: batman, gotham city
Extra notes: Please quote fixed amount for project. bids without a fixed price will not be considered.