Having looked through the Alex Ross book mentioned earlier, I was suprised to find that although his illustrations are mindblowing, in the whole book there is literally only one or two examples of text being used. (I.e "bang"). I will still use this as a style influence, and it has been pointed out to me by Ollie that the onomatopoeia doesn't necessarily have to be in the form of text, and maybe I should look at it in the form of shapes. For example "smack" could be illustrated through the use of various lines and curves.