Not that bad, but the colours seem a bit off. its a nice design but you have just used the wrong colours together, maybe something like gray and green or green and white would better suit the jaguar car, but still good effort.
Constructive Criticism - Please do not take this to heart. This mod looks awful, take this from a fellow modder, I understand that you are new to modding but you have released more mods than I have, Work on mods to a level where you are happy with it and you think others will be, don't just release a mod for the sake of releasing it, make sure textures fit and don't overlap and that the colours work well together, don't just recolour the default paint job either try adding new shapes etc (like my Audi skin) or just make it unique! I hope this isn't found to be offensive as that isn't intended, I just want to help out my fellow modders in the community
If you have any questions just private message me, I am more than happy to help :)