>>1600434I think hes talking about how the icons are not centered vertically. the red lines here show how the spacing is just a tad off. Personalty I think it looks good though. its one of the few and I mean FEW times that icon pack (or style of icons) looks good.
as far as the cube goes, if you used that same shade of blue for the weather widget accents it may help pull the theme together better. I think its a good lock screen image though.