t - Shirt Design logo

I want a design for a t-shirt that will be the brand's 'signature' t-shirt. The logo (in the second attached file) will take up the entire front of the t-shirt (the url will be placed on the back middle). The logo will have to be resized/reshaped for this to take place. Additionally, there is a possibility of adding more detail to the t-shirt to compensate for the resizing (ie the design which is at the bottom of the logo under the writing). Also, you can make a crest out of the logo for so as to occupy more space on the front of the t-shirt. Pls see first attachment for a rough idea of how the logo should be placed on the t-shirt, and what kind of an effect it would have by using a crest around the logo.