As you're requesting feedback, I would suggest making the rulebook easier to circumnavigate. Instead of having to look through the whole book to see what things do, put it in the most relevant places. Everything needed for character creation should be in that chapter. You shouldn't have to look 2-3 chapters just to figure out what all your character can do.
Obviously, feats, skills, and spells should be in other chapters, that's understandable. Just everything mentioned should be in those chapters as well.