Thanks a lot for the information, Fabio! Then it was oversharpening that added that "metalicity". BTW, do you use the same method often in your images? I am very curious to know about that because it resembles the results of overexposure - pretty much the same hard contrasts and reflection-like patterns that we see on the contours of things made of metal.
It could have been a rusted metal schulpture, as you depicted it in your very personal manner, Fabio! A format filling pattern of a very special kind, in which "beauty" follows not the traditional rules. But it does follow your own set of rules, which becomes more and more visible as you proceed in photography.
If I may ask, do you process your images after shooting, or are they the original results of your shootings?