Here are some of the best selling Prints of 2012. Congrats to all of the amazing artists.

Captain's Mug
lines hold the memories
All of Time and Space
The Neverending Dreamer
Scorched earth
:shop31669509:
Freedom- The Carousel
Memory Lane
Howl
Protect me from what I want
Bat Kid
As an added bonus here are some amazing Prints sellers who are on the rise.
Call of Cthulhu Arkham horror
Defend Equality-free your mind
Kraken Come
The 4 Elements - Fire
Moth 2
Visit Prints Shop
I'm dreaming about buying some dA prints in the future
To all of those who think that they should be promoting unheard prints, I think that is just jealousy speaking. I mean, WHO bought all of those prints to make those prints featured in this journal? Obviously a large portion of the DA community. And guess what, the same people are featured in the journal, the same people who work JUST as hard as you do.
So for the few who are complaining, stop it. It is like you are saying their art is less art because it is popular. You might not mean that, but when all I read is "bitch bitch bitch", that is exactly what it sounds like. This isn't top 40 radio, this is deviant art, and I respect deviantart's decisions.
While this image is directly inspired by that show, it still is of a technically common place object.
Looking at my Blu-ray collection I see Indiana Jones. If this were a picture of a brown fedora and a whip, it would still simply be a fedora and a whip. While it may bring up images specifically of Indiana Jones in your mind, a fedora and a whip together does not infringe on Indiana Jones copyrights.
Copyright/trademark law is incredibly complex. If it invokes a feeling of, or if it references in some fashion, it still could potentially be OK. I have spent some time studying it so I have enough knowledge to answer your concern with enough certainty, but I know others may be able to explain it in a more technical manner.
I hope I was able to help you with this question.
It still feels like twisting the rules to me though given that she said herself it was a Tardis made out of stars and it has been submitted to a Doctor Who fan group. That's really stretching it. I suppose a more direct example would be the one =Diamond4girl reminded me of, which was the BBC Sherlock one that was a best seller last year (and interestingly enough has had ALL references to the show removed from the deviation description since). That's a very interesting and specific loophole.
But still, you've answered my question and given me some insight. Thanks