Translation of ilustrador

Hi, I'm back from my vacation. It gives me pleasure to learn Spanish, because I can feel the improvement continously. I studied medicine in the University of Montpellier, a student city in France.
Everything in your letter is perfect! Almost no errors and the writing style, very impressive! After this first year in England, you have also improved your vocabulary and the grammar skills.
I come from Bavaria and live in Munich. How are you? Sorry that I am replying your email just now, but again I am covered with work. My boss is back from vacation and gives me many assignments.