Interesting that. I find my girlfriend who is Japanese and learning Spanish has a very accent and her pronunciation is good. We live in London. Good luck with your foreign languages. Actually, I speak quite good Spanish and visit a few tiems a year (written spanish is very rusty) and now am trying to have a go with Japanese.
Podemos communicar en Espanol sobre nuestras experencias en aprendiendo Japones. Hasta pronto.
Michael.