Okay, I think (hope) there´s a solution that doesn´t involve doing it again from the beggining... It´s very time and money consuming :/
I did the first piece of the mold, and all was ok. Then I filled the second piece, and after 3 days the silicon was still half-liquid! (It takes 24 h to harden). I don´t know if I mixed the silicon with the product that makes it hardens bad, or in wrong proportions, I don´t know. The thing is that the silicon was not hard enough. It filled the spaces it had to fill, but also found micro-holes to fill what it wasn´t suposed to be filled then!
This morning I retired the silicon. At the end it was not so bad as I expected, but as the silicon was not correctly hard it, the first piece of silicon and the antelope itself are a greasy. The worse part is that all the tiny details were filled with the silicon, but I can´t retire it easily because it´s not hard, it´s half liquid. I can retire it with a needle and lots (tons) of patience, but it still remain a bit greasy. Not a lot, only a little.
But I would like an effective method to quit the half-liquid silicone in an easier way without damaging the first silicon piece of the mould and, of course, the antelope... Does anyone of you know what can I do? Please?