You're an idiot. Kishi isn't copying from anyone. The 'colors' you are talking about aren't from Kishi, they are from the animation teams that adapt the manga to Anime, which Kishi has nothing to do with.
The manga is in black and white, not color. Kishi writes the manga, not the anime. Therefore if you want to accuse anyone of copying anything, you can accuse the animators of the manga of copying themes from other anime, not Kishi.
Once again, it's already been said numerous times that both Kishi and Toriyama based parts of their manga from ancient Chinese literature.
Quit propagating otherwise.
You're both wrong. Minato sealed only a portion of the fox's total power into naruto. Think of it this way: if Kuruma's total power is 100, then half of his power would be 50. Minato did not seal the Kurama's full power into Naruto (only about 20%) because he was just a baby, and it would likely kill him. So he sealed the rest of the power into himself as he died.
Now, the seal that he used on Naruto was not designed to last forever. It was designed to weaken over time so that Naruto could learn to use the power of the kyuubi as a tool. The 'key' to the seal is really just a technique that can change the strength of the seal to control how much of the fox's chakra can come through, which was given to Jiraiya in order to make sure Naruto didn't release the seal before he was ready.
Of course, over time as Naruto grew, Kurama's power also grew, becoming more of a threat if it was ever released by accident. Eventually naruto was given the technique to the seal so he could gain full control over how much of Kurama's power he used.
But no, it's not a yin and yang thing, and it's not really a matter of Naruto being able to access more of the kyuubi's power than he was given at birth using the seal.