As far as I remember from when it first opened, if you look back on the left side between the end of the "tank" and the waterfall there's just... nothing. I think some plants maybe left over from the old lagoon, but it kind of ruins the suspension of disbelief when there's no wall where the "tank" should be.
I would so, so, so much rather have had the tank scene come after the cave, not before it. I always loved that big reveal as the gates opened, it really made me feel like I was somewhere else entirely (back when Despicable Me was still T2 at least. Kind of hard to ignore the giant minion now). I feel like the sightlines could have been managed with either some foliage or new rockwork, perhaps. I think the pacing of the ride would have been improved greatly if they had kept the lagoon scene, and then after the cave, you enter into the Mosasaurus tank. I always felt that that section of the ride was the slowest.
The scene really does work better in person, but its placement in the course of the ride is my biggest problem with the JW reskin in Hollywood. Initially, I was also disappointed by the ending, when the Indominous Rex was more static. The new finale is a HUGE improvement, and I actually prefer it over the original now.
I think if they're going to retheme to JW in Orlando, the biggest thing to rethink is the Mosasaurus scene. I also hope they keep the dropping crate, since Hollywood's version has felt pretty empty in that section since the falling Jeep stopped working years ago.