You're not the only one who notices inaccuracies as I'm a pretty picky person when it comes to details and likenesses as well - perhaps it's just that some of us don't swing by these boards to comment often enough, myself included (my post count is still waaay under 100 and I've been on the boards for a good half year). Oftentimes, by the time I see stuff on here, the subject has already been changed or the "problem" fixed.
I too hope Rainman fixes the nose on Marla, and yes, those glasses are definitely 'off'. The glasses shown weren't custom, were they? My assumption is Rainman
found shades that looked "close enough" to what Marla wore. I can only imagine that manufacturing glasses in small quantities for 1/6 scale figures would be quite costly.
Regardless, I'm still hopeful for better/improved shades too.