Thank you very much everyone for the support!!
Sorry for the late response, finally managed to make the low poly, and after some struggle, the actual tri count is 1712, it was like 1650 before, but had serious problems with the eyes of the main skull and put some more geo there...do you guys think i crossed the line too much? :/
I`ll leave you some screens with the low poly and the baked 512 x 512 normal map, now the eyes glow is in the texture too yay!. There are some smoothing errors, i marked with red the most noticeable, the difusse texture covers it a bit, so may be is not that bad, dunno, maybe i`ll just separate those polys with a smooting group, and rebake...
I`ll leave an image with a simple difuse too, it`s just my cavity and occlusion maps over some base colors i did very quick, just getting some ideas, i`ll post more color designs tomorrow i`m tired right now and need some sleep. If you have suggestions for colors i`ll be glad to hear!!