I would definitely put “Street Fighter 4” in bold lettering. This next thing is just nitpicking, but you might want to actually spell out the roman numeral “IV” too. I think that makes things more “authentic”
Lower the opacity on Ken and Ryu, and make sure they don’t overlap any lettering. That is, unless they are really, really transparent in the printouts.
When you put in “Cash Prizes”, I think you should also take the liberty of increasing the size of your address and phone number. Maybe even put it in a different font to make sure people get all that information.
I hope your tournament goes well!