Avatar: The Last Airbender's Homage to Dragon Ball Z.

Delusional though I may perhaps be, I've long believed that the show's final fight between Aang and Fire Lord Ozai, was partially inspired by Dragon Ball Z's final fight between Goku and Freezer.

The red, fire-scorched desert scenery is very reminiscent to the dying Planet Namek. The finale of the fight contains even stronger shadows of Z. In particular, there is this one moment, when the defeated Ozai lies at Aang's feet, which I definitively believe is an intentional homage.

If I were to take one specific frame in Z that this is the closest to a direct source for the homage, it wold be this.

However, there are several scenes which feature the disgusted Goku turning his back on the defeated Freezer, as both Goku and Aang struggle with the question of what to do about an irredeemable wretched creature, not wanting to kill... but being left with no option.

Now check out the scenery...