This is a fan art 
i would give it more samples to get some awesome clear 
You see this is rendred with 500 samples and my computer isn’t strong enough to do more 
You could just put it on progressive render, set the samples to a million, and let it run overnight. I did that once and in the morning it was at 6000 samples.
it’s the wallpaper for my pc now^_^
I’m honored 