Assassins Hidden Blade

My model of Connors hidden blade from assassins creed 3,
any ideas to make it better are welcome.

I like the leather material a lot, i would say that the metallic materials need a little improvement. Is this in cycles? If so i would suggest using an hdr image and make the metal a glossy material so it reflects the hdr. their are lots of tutorials to get the right metal.

Nothing is true, everything is permitted.
It is good, dont know what could be the way how to make it better.

thanks, im thinking of changing some of the metal parts