I thought "write me" was wrong but it turns out to be American English, so if using British English, it must be "write to me".

Without an object, "write me" sounds very strange to me.

As well as "have done", you can use "did".

face parts

I"ve done it in 4 languages   or I have done it in 4 languages

.. please write me if it's wrong or please write me if it is wrong.

The English names are correct.  Sorry, I can't help you with the other languages.

face parts

I have done it in 4 languages .. please write me if it is wrong

face parts

I have done it in 4 languages .. please writeto me if its wrong