Too many questions! Just kidding, I'm happy to do my best to explain it!
#1: I didn't see what's inside the trunk from my first 2 rides, and I'm not sure yet if it's visible at all or if I just haven't seen it.
#2: There's a lot of the frog figures with the eyes that follow you throughout. Gloria and Delores show back up after the finale. The fireflies glowing above look incredible in person. The "transition" to being as small as a frog is very simple, yet very effective. There's a flash of light as you enter and exit the drop, and the audio really sells it.
#3: The only time our log stopped was on the first ride, but that was right after the finale, so we got to appreciate it for a little bit. The audio bleed is very minimal and much better than Splash, but I'll have to get the exact spots as I ride it more.
#4: No animatronic hitches besides the first Louis, his mouth wasn't moving. This has since been fixed.
#5: I'd say the entire thing is interesting, even the quieter parts because it feels real and natural. There's tons of little things you'd have to see with your own eyes, but the most fun one is the firefly that appears massive in the bottle before the lift and 50-foot drop. They are moving alongside the log up to the lift, and it's timed to the log passing by. Very fun.