So I was trying some things in post to get the render to look
somewhat like an oldish photograph from when the pictures still turned slightly brown/orange with age.
it might be a bit too saturated though.
let me know what you think
i didva quick refresh on my memory. google search old yellow photograph. I think the color is to bold and the paper a bit to perfect. Needs more noise possibly also. PS might have a plugin unless thats how you did it. compare it to scans online and youll see easily what yo change.