Great work Boris!
It'd be great if someone could touch up the model a bit though. Aside from the length, there's parts of it just begging for more a bit more detail, and it would be great to have the railing fixed up a little bit, too. But this is all a great start!
Here's a great plan someone could use for reference by the way:
http://www.collectrussia.com/sBoot/lateplan1.jpg