Hi Vyacheslav,
I just tried your game. I like it very much. There is a perfect balance between action and puzzles. I think the second part needs maybe more stealth and exploration parts.
A couple of things: sometimes there is a ‘sliding’ problem when moving the avatar, it's a bit annoying.
The second thing: who wrote the music and sound design? There are a couple of sounds that are not quite right.
Anyway, good luck with this game, I really like it.