[Red Shell]

i'd raise the flop. you need to raise an amount that is small enough to get a call while not letting him fold the turn, so he has 14.75 left. 7/8 more on the flop, rest on turn. I wouldnt worry about giving odds to draw to a flush here as i think thats a smaller part of his range. I'd be more interested in trying to stack his one pair hands.