Hello Dave,
Well, I checked OBI and didn't found any other in wild pictures, just yours and two picture of trapped bird. Since this is the most complete image database in this area, i can assure that there are very less, if none, picture of this bird in wild and your picture maybe the only one. However i don't know if local birdwatchers there have taken it's picture before. They are very active club so there's a possibility they have taken this bird's picture before, but they didn't share it on international forum.
Congratulation for this mega-tick!
Panji