I think you're off to a good start.  I'd focus on getting the pieces a little more uniform in size and make sure the turn-in pieces are evenly sauced.  You have areas that are more heavily sauced than others.  The judges like consistency and pretty-looking entries. 
I compete with a team in the St. Louis area and handled the chicken entry entirely on my own for the first time at a big competition this fall.  Different recipe, different smoker than previous comps.  Did boneless thighs, initially braised in margarine, and finished on the smoker grate.  Sauced with off-the-shelf BBQ sauce mixed with a little pineapple juice.  9 thighs were boxed.  The trimmed boneless thighs end up fairly small, so they only take about an hour total to cook.  
Here's a picture of what I turned in:
I didn't think the skin was "bite-through" but the judges must have thought differently.  We won first place in chicken out of about 70 teams (14 out of 15 "9's" were scored).  I really tried to make all the pieces as uniform as possible, and used quite a bit more seasoning (both sides of thighs, under and over skin; re-season after braising) than what it looks like you used.  
You're certainly on the right track, at least for the current chicken trend.  And yes, prepping is time-consuming, tedious, and downright gross at certain points.  But the devil is in the details.
Best of luck to you.