The only thing I’d suggest for your consideration is a slight reordering during the final act:
We’re told that the Gungans showing up on the plains is nothing more than a distraction to draw out the droids so that Padme/Qui-Gon etc can infiltrate Theed. We see the Gungans come out, the droids come out to meet them, the opening salvo is fired, and then we cut away to the action in Theed.
But here’s the thing - from then onwards, the plot on the plains, the entire battle, is now completely redundant. It has no jeopardy, because it’s already served its purpose of drawing the droids out of Theed, and whether or not the Gungans win has no impact whatsoever on the battle for Theed palace or the droid control ship. Sure, some Gungans might die, but nobody has any emotional investment in Jar Jar, Boss Nass, or Tarpals, and other than them it’s just faceless CG Gungans versus faceless CG droids.
The only value this sequence has is in showing that the droids are theoretically a threat since they are a functional army that could reasonably threaten Theed, and eventually, the light additional ‘things are going badly’ sense from seeing the Gungans surrendered.
Shifting the Gungan sequence’s conclusion to far earlier during the narrative of the endings would resolve this, and also allow it to serve a further purpose - to emphasise the threat of the droid army and leave it hanging over our main characters, making Anakin’s destruction of the control ship worth a little more.
It’s very achievable too. The closing shot of the first Gungan scene (opening salvo) matches perfectly to the opening shot of the second Gungan scene (closing salvo), and there doesn’t need to be a gap of time here to imply that the salvo went on for a little while - just what we see is plenty, and actually shows that the Gungan shield tech is respectable. The rest of the scenes can be brought forward alongside this change. The only other actual change to this sequence I’d make is that there’s a nice clear shot of droidekas firing off-frame (originally paired with Gungans falling off their horses) with the shot of the shield generator’s exploding (originally with no preceding shot to explain why it explodes).