If God is perfect and his creation is perfect, how come we aren't?

I've asked this question a few times before, and all you will get is a load about "freewill". It is fallacious, as there are many imperfect things about his creation, such as our immune system, or even the fact that the planned return rate to heaven is not 100% perfect (as, some go to hell...). Regardless if you say that becuase of Adam & Eve, as who created the world which Adam & Eve sent to? And who created the faults of such world... remember, God created all!