When one learns about graphic design, one ends up obsessing about these kinds of things. "These text lines need a tiny little bit more of space"... "Those margins are slighly too small"...
It's just job conditioning... At some point in my life I was playing the game of trying to recognize the fonts I was looking at in the adds and signs as I walking down the street.
I know. And frankly, I'm not even the worst coder when it comes to graphic design. I know enough to see that _something_ is off with the cover, but not enough to figure out what ;-).