Not sure if the visor cap will read too well to other people. Took me a couple of minutes to see what it was or get it, until I saw the cards. May have been due to it being a wip in all. I'd suggest trying something more fitting, like a fedora, or tophat of sorts...
It's hard to critique at this point, however, as it's still in it's beginnings, and awaiting further detailing(dithering, what have you...). Hope this clears up a lot toward the latter stages, rather than going unfinished, like most most diamonds in the ruff I see now a days.