Dia daoibh!
Ok so this post may be a bit dated seeing as though the Urban Decay Naked 2 Palette has been available for quite some time now; but I still hear the question being asked "Do I need both palettes?" The answer? No, you don't need both palettes.... You might want both though!!! ;) I certainly did!
It is hard to decide between the two, but at a push, out of the two I seem to gravitate more towards the original palette. I have blueish eyes and love using warm tones to contrast and make them pop and the original palette mainly contains warm, golden brown tones.