when you put the original side by side with this skin on my screen it is a much bigger improvement. however i do agree with others as this is the only one of yours that looks to "green" for me on my pc. but in all honesty its not that bad and like i said a much bigger improvement than original. you could say night and day difference
Keep in mind that there is always a recommended filter for the most natural look which is Inmersive_noreshade, this seems to be the perfect balance between natural car & track colors, I know it's an old filter but with some small edits it will look the best among all, but if you use SKY, Exquisite or NFS filter those can change the colors on my Rich Summer tracks to unnatural levels.
Despite this you can edit the grass .dds files in my skin so it can be customized the way you like.