I get a warning at 8000x4000 as my pc is slow, I've removed the clouds and reduce the haze and fog and will have to render the sky seperately (not gonna look good i know but this is just a tester to begin with)  Any bigger than that it wont work on rendering and will probably crash, oh i wanna new sooper dooper pc.

 

Tools:- Win10, Dell XPS8900, ZBrush, Marvelous Designer 11, Hex 2, PSP8. PSP 2019 Ultimate, DAZ Studio, Affinity Photo, Affinity Designer, Filterforge 11, flowscape,  Classic UVMapper, and several headache tablets.