wickid, just curious what you did to get such a warm shot... was that light pollution, some special event such as firework smoke/fog, special on camera/post processing filters? Just curious.
my guess is that it is simply the white balance that has been exaggerated via the HDR processing. i have had similar results at night with HDR with the colors shifting to the warmer side.
5D3, 5D2, 5DC, s15mm Fish, 24mm TSE, 35mm F1.4L, 50mm F1.2L, 85mm F1.8, 100mm F2.8L, 24-70mm F2.8L, 70-200mm F2.8L, 580EX, 580EX2, 600EXRT