In the hand - it really hurts my eyes to figure this out without formatting - try to use the card emoticons if you can.

Complete is so-so... J7 is pretty much as bad as it gets.
Flop bet is so-so. It's a multi-way pot, you have top pair and no kicker. The board very draw heavy... you have no way of knowing where you're at if you get a call.
Turn bet is ok.
On the river you're basically bluffing. Just check/fold.

In this situation I would check the flop since your as OOP as it gets. If it checks through, you can safely bet the turn and shut down when another spade hits.