What a pretty girl Zima is and a special welcome to a fellow akita lover!
I'm sure you'll find lots of good tips and ideas from folks smarter than me as well as all-around great puppy support.
I've had a little experience with fear issues with my smaller dog, Oni, a shiba. Zima may need some extra socialization to help her get over her stranger fears ... Oni has a lot of fear issues (our akita, Joji, doesn't have a shy bone in her body). Although it hurt me to see him so fearful of nice people and new situations, one of the best things we did was expose him to a lot of new things anyway. Before he got to a panicked state, I would put him in a sit position and treat him like we were doing obedience training. It also may not hurt to have treats with you to give to strangers (or friends) who can, in turn, give them to Zima - pretty soon Zima will think everyone loves her with treats. As to Oni ... he has gotten a lot better - he may always be reserved around people he doesn't know, but at least now he doesn't totally freak out when a stranger walks by him.
Again welcome!