His blog entry on what's happened is here (RUS). The language he's using isn't too gentle, but he's been through so much crap today, plus he's a Scorpio, so I wouldn't judge him too harshly.
Here's my translation of the essence of his post:
[...] [The Finns] didn't allow me to enter the EU because I had been planning to spend most of the time in Italy, not [in Finland]. Judging by the papers that I've signed - they are banning me more or less forever. At some point, I felt like asking for a lawyer and for a Ukrainian-language interpreter - something that was totally my right - but I wasn't too excited about the prospect of spending a couple nights at an airport quarter the size of Sheremetyevo, especially considering the exhaustion of the past few weeks. [...]
Also, here's an informative comment by LJ user remetalk, an award-winning St. Pete photographer Sergei Maximishin - whose wonderful work you can see here:
Oooooo, how relevant! For the past week, I've been going to the Italian consulate as if it's my job, bringing them [all kinds of] papers. The gallery that's inviting me for an exhibition in Milan is already [sick] of sending faxes. Today they've told me everything is almost okay, and all I have to do now is come to the consulate tomorrow and show [them] 270 euros. According to some calculations of their, this is exactly how much I need in order not to starve in Italy [during my 5-day stay]. [...]