You can't have the better looking skin. You can have the one that came with it or this https://modification-universe.com/forums/resources/simple-coroner-pack-los-santos-and-blaine-county-blue-light-textures-inc.225/
Why is the stripes yellowish orange? I've only ever seen US Park Ranger cars with like a dark green.
*Never mind I didn't realize it was Bureau of land management texture. But, just based off pictures your brown seems to bright but that's just me.