Several of the shots featured above generate suspense as they feature the "ticking clock," counting down towards the moment in which David will be rendered unstable, and changed forever.
The next shot puts David in visual jeopardy, literally putting his brain in the cross-hairs of the experiment. Once again, we get an explicit shot reminding us of DANGER.
Together, the following shots juxtapose inner nature (David's changed psyche and physiology) and Outer Nature, or Mother Nature.
After the dramatic title card (above), it's onto the dramatic business of establishing The Hulk's back-story, and his hapless pursuer, reporter Jack McGee (Jack Colvin).
Next we get our supporting performers credited...