That’s incredible! When I saw the source I wouldn’t imagine that was possible on non-pro/non-studio set-up.
For the color (ala your cheap laptop) I went and did a quick tweak that I think takes it closer to realism, but maybe not? I just reduced saturation a decent amount and also shifted the color a tiny bit from the red/magenta toward the green/yellow. This isn’t remotely belittling your efforts. Just seeing if you agree and if it’s perhaps a smidge of help (or maybe it’s just not)
https://mega.nz/file/ikZgCT7B#wHTZUKyerRw6KAZbfwgmFcHaqM-i9X6ISgWM7k5C4c4