No need to put a real face of a Japanese guy, they can build the head and put a bitcoin symbol instead of the face.
BTW, the place where they plan to build the statue is good and i doubt that authorities will accept it easily.
It's Ukraine. In the former Soviet states you can buy anything and everything if the price is right. So, if they get enough funds for the project I'm pretty sure we're going to have the first statue of our founder. It's going to attract tourists for sure, which is another reason for the government of Ukraine to support it.
As for the face it could be a statue of a faceless man, or just a statue of a coin with with arms and legs
It won't be the first BTC monument though.
https://www.rbth.com/arts/2017/07/26/forget-pokemon-go-bitcoin-is-now-making-waves-in-yekaterinburg_811752There's also one in Slovenia.