you are betting only 120 into a pot of 390

you are giving anyone with a flush draw great odds to come along and bust you. You should be betting more to make people with flush draws pay to beat you. 300 or so should do.

By the looks of it none of them hit anything on the flop. You most likely wonldnt be getting payed off anyway even if you give them another card to catch up.

and im not %100 sure about this but it might be misleading to people. You dont have a set, you have trips. A set is where you have a pocket pair and use that to make 3 of a kind. Trips is when you use one of your hole cards with a pair on the board to make 3 of a kind. Trips are much easyer to decect and get payed off less often.