What they said. Temps were likely in the 275˚ range. I usually do them at this temp, and foil for no longer than an hour. Initial time in the smoke is between 2 and 3 hours, depending on the color and amount of pullback. I personally don't like a lot of pullback as that to me means they're getting too done and losing too much moisture. As soon as I see between a quarter and a half inch of pullback, and I have the color I want, I foil them for 45 mins to an hour. Then maybe 15 minutes to a half hour back on the grate to firm up and set any glaze or sauce if I happen to be using one.
Weird though, your ribs appear to have very little pullback. Just out of curiosity, how much liquid did you use in the foil?