The logo of full, red lips with fangs and dripping blood is so classic and iconic that it's occurred to me before, it's not unique enough to make it easy to protect as a trademark, minus the word VAMPS in that bold impact font. In fact, at least once or twice, I've run across an image almost identical, that predates VAMPS, used to advertise something - whether it was music or a movie, I don't recall.

Now, if the Russe graphic or any other were to match the VAMPS logo in distinctive ways, you might be able to make the claim stronger, like, if the ink color or the proportions were to precisely match VAMPS' logo, with just a few changes made, to mask the copy.

One of the things I've always noticed about the VAMPS logo is that the two front teeth are disproportionately wide, and only four top row teeth show, across the entire mouth. In the Russe graphic, the edges of 2 more teeth show.

On one hand, the VAMPS logo has made that image prominent, in the past 3 years, so you might realistically say Russe is unfairly profitting from the image's association with a popular group, thereby violating VAMPS trademark rights (not sure if these are the correct legal terms).

That 'love at first bite' pun is also a rip-off from the title of a vampire movie parody.

On the other hand, the red lips with fangs and blood is not an original concept, and the sexy-but-dangerous vampire theme can be seen being used to sell in lots of places.