Mostly seems fine so far! The dragonborn changes might be a bit much altogether, but some testing will reveal if it's an actual problem.

The two that really stick out to me though:
The elven accuracy nerf is fairly big, makes it not really worth using. Anyone would be considerably better off by just grabbing Lucky.
Making donning/doffing a shield an object interaction means that you can two hand a longsword, hit somebody, then equip your shield, giving you both the damage boost and the extra AC.