https://gyazo.com/3aa9c5a9961b10508a1a9e1ceb2980b7

Villain unknown reg(50% flop cbet after 30 hands)

By his check on the flop and small bet on the turn I sensed weakness, so I tried to bluff(risk/reward was not bad). I would have folded in his place. Thoughts?

All comments are much appreciated! :)