I am absolutely fluent in English as well, in fact have worked with a number of artists from other countries than Germany.
Until recently, I had a language switcher on my website. But it made the webdesign a bit convoluted even in the best of times.
In Berlin, you must know quite a number of ex-pats understand German well enough to get the gist of a website like this.
If there’s any questions left, don’t hesitate to drop me a line or just call me. In English of course 😉