Master Natural Bodybuilding is a non fiction book for mn of 40years and more who like to stay in physical and mental health with showing a well trained body without using performance enchaning drugs like anabolic steroids, growth hormone etc.

I wanted to give your book a strong, gritty look to convey the idea of strength and the energy of the author's body and of bodybuilding in general.
This red version of the design focuses more on the idea o strength needed to master something, especially something as hard and strenuous as bodybuilding.

The second one, with green highlights on the second part of the title I wanted to focus on the "natural" part of the title.