You are starting out very well here. I hope you find some more fighters and get some real action going. I love your slogan, "It's not a fight without pain." If all your fighters accept that in advance, your fights should be exciting.
Just a couple suggestions for the rules. There should be no talking by the fighters during a fight, trash talk or other. Trash talk belongs ahead of the fight, in interview vids. Post those before the fight vids and you will really build up views. During the fight, fighters need to concentrate only on fighting.
Along with "No shoes," you should also have "No shirts." It's a safety factor. Have you ever seen a fighter get his shirt pulled over his head? That's very dangerous. It will also make for better fights, as taking off the shirt shows total commitment of one's body and self to the fight. When you start getting hit on your bare skin, you won't care who is standing in front of you, you will respond by inflicting pain on him, as per your slogan.
Thanks, guys! FIGHT ON!