Warsaw Fashion Weekend Bilioneurobab on We Heart It - http://weheartit.com/entry/39293106/via/angel_spawn
Hearted from: https://www.facebook.com/photo.php?fbid=178034208988340&set=a.111385098986585.7127.111334282325000&type=1&theater
I am probably not the best person to be asking since I am still learning myself, so take this with a grain of salt. Your best bet is just to observe metal objects in real life or find references. But I hope this at least points you in the right direction!!
Ayman Zedani