I see the math for the line spacing is right, but can you bring in the spacing on the cite? looks like maybe you hit enter and caused a new paragraph spacing instead of it just wrapping from the first line...
Quote transparency is 40% (not 60), should be a bit lighter
See design on left, site on right: https://www.dropbox.com/s/jg2gj18tbcdmv7d/Screenshot%202015-07-19%2011.29.30.png?dl=0