I agree that the material of the cactus could change, there should be more rocks along the horizon to highlight it more and the sun could be a bit smaller.
too low poly and the dunes aren’t smooth. that sky doesn’t seem realistic for the desert. why the rocks in the desert? the sand isn’t an appropriate color
It wasn’t made to be photorealistic, it was a showcase of something cool he made, it was clear it was a lower poly map, not the Red Dead Redemption 3 map.