Make the braces longer, specifically from the post to the ridge. I would have the braces under the cantilevers attach to the top plate not the plate the short rafters are sitting on, a little rearranging, maybe change the angle of the brace to a 1:2 ratio.

You also do not show braces on the gable ends? I am undecided on the tie from plate to ridge post. It would allow for over head storage, so I think I would add them.

In a recent thread Mike has shown some nice ridge beam examples. I see the ridge being dropped a little allowing the rafters to sit on top of the ridge not cut into the face, like how you show the them at the top plate.