The problem is not if you are Inter or whatever, you should try harder things to learn "tips" to do it better. I've been copypasting since 2007, and I've never copied from the same car.
This is my advice, you'd take or throw it.

yep i know, thats kinda easy copying with the same car, but like i said before, i'm still learning and that still kinda hard to me. okey i'll take your advice, but can you give me some tutorial ? if you want it, if you don't that's okey

one more time please no hurt feeling

I tried to make a tutorial before, but there is a problem:
How many techniques of brushing do you know? Well, here you do as you can, it's so personaly and the best tutorial is to keep practicing and practicing. In my case, I learnt watching other chops and saying "I want to do that, how the f*ck can I do?", and 4/5 years after of that, I'm here.

@Tebi : yep i always trying to practicing and you always inspired me to do more, but i always stuck to make the donor fit with the base so can you give me some tutor to make the donor fit with the base please ? thanks

The most important thing is that the donor should has similar lines from your base.
As my lastests chops:
Mazda 3 & VW Golf
Audi TT & Scion Tc
Skyline R33 & Silvia's
Evo & Sooby


And obviously in the same perspective (or so close similar). As you improve your technique, you could use "no similar lines donors"

Other important point, I'VE NEVER BRUSHED something, so if you can brush or rebrush some parts you could do other works that I can't.

interestingly

Thanks Tebi !