That's one mean looking truck!
We don't see many trucks chopped these days, so it's nice to have a bit of a change
I think I only have one fault - the black paint.
If you look at any black paint, you'll notice it's not actually black - it has lots of colour in it from the reflections of the surroundings - green from trees and grass, blue from the sky etc. Your paint here is completely desaturated, so it looks a little fake.
You should also be careful not to make the paint too dark - look at the wing mirror on the original - it is already a gloss black colour- all of your paint is much darker.
It should look a little more like this:
Other than that well done

Keep it up