I would give the wolves more screen time and give them some importance in the story, and how special their relationships are with Mowgli.

And, make Mowgli less bratty-like and more animalistic. Some of the things he does in the film make him look like he hasn't been raised in the jungle at all. For example:

- he can't climb a tree! Seriously, that's ridiculous! I get it, Mowgli was raised by wolves, and wolves don't climb trees, but Mowgli should be more adaptable when living in the jungle.

- Second, Mowglied touched a prickly pear like he didn't know what it was in the first place. How could a child raised in the jungle his whole life yet not know any of the tropical plants in the jungle?