Open thread: do covers matter?

So I put some thought into my erotic ebook covers.  Here's my latest:

Here's an earlier one for the Drake Cheerleaders Incident, which I think captures the grace, power but also fragility of an erotic power-seeking cheerleader perfectly:

 
That was also before I started putting Cosmo-like taglines on the covers and just let the picture speak.  (You can check out my other covers here:  https://www.smashwords.com/profile/view/PFD.)


I put some work into them, but I wonder, do covers really matter when you're looking at femdom books?  Which ones did you like the most, and why?  And do you like the 50s-style taglines on the front or just want a pure image?

Thanks,
P.F. Dee