Villain may have straight flush, I would play it cautiously on the river.
Also, why are you playing with a no color deck?
If villain made a large bet I could have found a hero fold. Also I am colorblind so I filed a discrimination suit against the casino. They agreed to use a no color deck if I dropped the lawsuit. I didn't want to get dragged into years of litigation and possibly have to give a deposition; so I agreed.