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!
YESSSS--would be nice if you could have some aesthetic options to pick for your spellbook too, such as some cover art based on languages you know and can use, plus color, shape, etc!!