What nationality is the artist?

The artist comes from Austria.

falco?

No, he is a painter.

I don't see why it's that surprising. The people aren't typing in German phrases to find the site, they're presumably typing in the artist's name. And they're probably looking for images rather than text.

jomaxx, yes, but then why are almost all of the visitors from spanish/portugese speaking countries? This Austrian artist is popular there?

Unknown. Maybe that. You'd have to look at the referrer strings to understand why it happens.

I've noticed my rankings are different for all the different Googles these days; maybe there's some factor that causes this site to rank higher than average in google.es.

Perhaps because he didn't invade Spain.

yes, but then why are almost all of the visitors from spanish/portugese speaking countries?

Where are the servers located that host's your site?

I recently started a thread on this topic in the WebmasterWorld Google Search forum, and was advised that the country the server is located in, is important when targeting visitors.

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