this JJ hand is still bothering me!

[Jeebus]

Live 2/5 at Belterra tuesday night. Table just opened with all regulars it appeared. I never played there before so I have nothing on anybody. Plus I can barely see Villan because a really big guy is sitting between us. 1st hand so everyone has the max. of $400.
6 handed, hero on button. villan utg+1
one fold, villan raises to 25, fold, hero raises to 50 (I did this because it is early in the game and I wanted to feel out some players I have never seen before. I know calling would be a better idea) villan calls.
107 in pot
flop 4 6 Q rainbow
Villan checks, hero bets 50, villan raises to 200, hero ????