Amazing work as usual. Sometimes I think your fractals are actually TOO awesome. The physical definition in this is so realistic, looks like you could touch it.
You can't really say any of your pieces are bad, but I think this one could use a bit more color to make it stand out. It stands out enough because it is a technical marvel, but aesthetically, I wish it was a little more colorful and a little less bright in spots.
Were you trying to get the center be very red and the surrounding parts silver? I was thinking that as well, even though I said there should be more color, I think just more of a contrast between the center and the surround would work better.