The stressing of "ádvertísement" and "spéctators" was amiss, but aside from that I have to say your pronunciation is superb! I'm studying translation in English and Russian you should know, so linguistics is part of my schedule and I'm also used to listening to proper English and to Russian accents respectively. Even though I could discern slight indications that your mother tongue is Russian, I believe someone who doesn't speak it wouldn't even notice. You sound quite British I daresay. :)
Lol English British or Scottish British? xD
Jokes apart: thank you, that seriously helps; I make mistakes with the stressing quite often, in fact.