An extremely minor nitpick is that Gale doesn't have a spellbook in his inventory.

One of the big things for D&D 5e is that Wizards have to learn their spells and are learned spellcasters and they keep track of their spells in their spellbooks. It's also a really cool reward to take another wizards spellbook and learn all the spells that they had.

It would be awesome to see this in the full release of the game!