Looks Good!
Tires usually need to scrub in a bit, maybe a 10 mile excursion on a gravel road would buff off the glossy patches. If you are expecting a
lot of wet road usage, maybe even look at the offerings by Avon & Dunlop, they seem to have the "grippy whilst wet" thing figured out.
There are rubber mirror extender mount bases out there, that might cure the shakes you see. You could also try taping some weight onto the stems to see if it makes a difference.