The pics next to your stockers is helpful. I actually like that they aren’t plain silver, but It’s interesting - I found this thread from a few years ago selling the same wheels and they do look really grey on the car, but throw so much more light in the other pics.
I’m used to the machined face with light grey paint of my current wheels, so this color might work out. As far as the 18” - hopefully it doesn’t look too spindly with the Brembos under there. While searching for pics I came across some 20” leggeras and the spoke proportions definitely start to look spider-like at that size.