I don't think this is the sort of flop where you can be looking at taking betters off their hand with a bluff on late streets - there's just way too much they can have that connects with this board, about the only time it works I guess is if he's flopped a bare straight with no low. But this certainly doesn't look like a board where I'd like that play because he's way too likely to have something (if not now, then by the turn/riv).

I think it's a fine fold. No hope of improvement for a high so you're pretty much playing for 1/4.