Avoid intricate details that might not translate well to a T-shirt; ensure the design remains clear and impactful even when printed on fabric.
Ensure Godzilla and King Kong, despite being in combat, are clearly distinguishable and not melding into each other or the jungle, even from a distance.
While the graffiti elements should serve as dynamic accents, they shouldn't clutter or overwhelm the primary subjects of the design.
Refrain from muted color choices; even in its raw form, the design should emanate vibrancy suitable for a streetwear aesthetic.
Stay rooted in the combined aesthetics of Greg Manchess and Jamie Hewlett, ensuring that the artwork, though tailored for a T-shirt, retains its artistic integrity.

Using this prompt should result in an artwork that's not just a visual treat but also a wearable piece of contemporary street art.