I have to disagree with the other posters. You should definitely work on verbal!
As you said, your scaled score is much lower in verbal. Yes, that yields a very nice percentile, but you still have much more room to improve in verbal, and any improvement will boost your overall score. The idea of a "balanced" score--say, 80% in both sections--is unnecessary and very difficult to achieve. You want to pick up points wherever you can. If that means Q 74% V 95%, so be it.
Naturally, it will be helpful to work on quant, too. I generally recommend equal time for both until you get to 95%+ on one section (and even then you want to keep practicing).
I'm curious what your process was like between tests, if quant went down and verbal stayed flat. How much time was there between tests? What were you working on? How were you studying?