I think I'm going to start looking for my first croc birkin. Seeing as this will probably be my ONE AND ONLY....what would you recommend? I know nothing at all about croc. I'm thinking of a 30cm day into evening... shiny OR matte poro OR nilo black, graphite OR ebene GHW OR PHW Thank you so much for any advice, Dears!! ps: Oh and is alligator comparable or not at all?