So here's my initial thoughts:
I would like for resonance to be reversed, being something that you build rather then spend, it would make it feel more like you were being saturated with magic rather then spending your inborn magical stuff
#2 clarification on small creatures using weapons, it seems as written now goblins and gnomes can use greatswords with no penalty, I suggest adding the sluggish quality to large weapons for small creatures
#3.shields could be tougher, add a few more dents for lower level shields or make it to where you can repair them between encounters rather then hours or 10 mins
#4. Spell durations need increased, if not leaving duration level dependant
#4.5 bless should be a cantrip or an all day spell, its a rather small bonus to burn a spell slot
#5 ancestries should have 1 heritage feat AND 1 basic ancestry feat at 1st level,with humans having either a bonus feat of the general feat or the one that grants a class feat on top of the 1 basic ancestry feat, this would allow half orcs and half elves to receive a basic ancestry feat after taking the half *** heritage feat
Ill add more as I get further into the rule books