That reminded me that I don't think we've posted their designs for the tattoos yet! I think they did a wonderful job of designing it. It looks exactly like I pictured it, and it calls back the nickname that we can read about in Last Sacrifice.
Icon, intended for shirts etc.:
Btw, for everyone who wondered who the guy on the Bloodlines cover is (and I guess that's pretty much all of us ;-), Richelle Mead confirmed most of our suspicions by simply saying that "the guy is the one left hanging at the end of Last Sacrifice".
I also spotted an interesting conversation between Richelle and her friend Mark Henry about the different versions the cover has gone through.
mark_henry:@RichelleMead That's really different from the spec art you showed us. SourceWouldn't it be really interesting to see the different stages of the cover? To see how it's changed in the process, and why?
RichelleMead @mark_henry What was the last one you saw? The tattooed people? Source
mark_henry @RichelleMead Yep, the tattoo. Source
RichelleMead: @mark_henry Haha, yes, it's definitely come a long way. Source