This looks like some traditional east european clothing, polish perhaps.

Lepperchaun said:
This looks like some traditional east european clothing, polish perhaps.

Another image by the same artist has Hungarian clothing, FWIW.

Pretty surprising. Previous works are strait anime-stylisation. And then, out of nowhere, professional realistic picture. I'd say, he's grown up a little.

The girl on the left looks like the old woman/young girl illusion illustration.