Finally! After so long, I delivered Gavin his birthday gifts!
He absolutely loved and adored his gift! He sat down and he and his sisters looked every picture over, just amazed and delighted. I showed them the full pictures in the back of the frame for them to frame/hang up! And, yes, they do plan on hanging it up (once they glue those pesky flimsy black edges in place)!
Gavin is doing great, and thanks to everyone who participated in this project; it was so much fun to put together and the outcome was definitely worth it!