I think it works well enough.
Misha isn't known widely outside of the namenerd community, so most people won't realize its a Russian boy's names. Even if they do -- does it matter?
Misha has a nice sound. It's cute, but definately has more substance than
Kaylee or
Madison or something else ridiculously modern. I knew a girl in junior high who used it as her nn. Her full name was
Melissa. So yeah... if you like it, go for it!
ArcadiaIt's just an object. It doesn't mean what you think