It's not bad but it's not good either. In my view the
conversation would run dry very fast if you don't
transition onto a better topic from there. Also,
there is only so much you can ask a girl
about her heritage/background before
she becomes bored because the last
thing she wants his a history
lesson.
I would improve the opener by making
it more spontaneous and interesting.
If she does by some chance say
that she does happen to be
German...what then? You'll
probably just carry on with the routine cause
you don't give a toss about the answer. If she is
German for example you can reply with
"Ah...vertalen kun je veel van de Duits spreken Duits?

"
(that means, can you speak German well?)
and then she'll be reply with "Ja dankie u
voor het vragen! Wat is je naam??

" That
means (yes thank you for asking!
what is your name?)
That's how I do it. I revise a small sentence in either
German, Spanish, Greek or even Russian if I do come
across a girl from that part of the world. If she is of one of
those descents and
I have a brief interaction with her in that
tongue language it will raise my value so
she can invest more in me. It's a small
bait of time to invest in learning
small dabs of languages for
further interactions with
hot Europeans.