That pretty much sums them up nicely. Both represent the two sides of dying Empire.
Trump is a bit of a wrecking ball, his far-right populist rhetoric appeals to rising material frustrations with the Petite Bourgeoisie, ie small business owners and the like, along nationalist lines. Strong aesthetic patriotism, lack of consistency or coherence, promises of restoring grander times and power. General far-right nonsense that sees dying Empire as it is, but blaming it on immigrants and minorities instead of addressing material conditions.
Harris is plucked straight from the stock-standard Empire maintainers. Her policies are largely Biden’s promises carried over, with firm Imperialist support for Israel and “the most lethal military in the world.” She isn’t attempting to appeal to fascists, but she is trying to appeal to those with vested interest in maintaining Imperial Hegemony. Small concessions and frequent doublespeak - claiming Climate Change is an existential threat in one breath, then boldly taking pride in record gas production and promising to never ban fracking in the next. She’s more coherent, which ironically makes the double-speak stand out clearer.