I almost feel like there's a lack of blue here. Like, the set looks slick right now, but I feel like the modifiers should all be blue and the alphas birch, or the other way around. Or something, I don't know. You've probably gone through a million colorways beforehand so you might've tried those.
I also, as a lover of mid-century modern, usually associate darker woods with it, like walnut and rosewood, maybe a little teak. It'd be cool to see the blue with that rich brown. Maybe alt-alphas? I don't know, just throwing spitballs at the board here.