Rebikov waltz no. 6

[quaver]

I am playing Rebikov's Waltz No. 6 in f# minor.  I am also interested in learning more about the harmonic progressions to enable to play from memory.  Ok, the first measure is f# minor chord but I am already stuck on what is the chord used for the second measure.  Could it be V6/5 over V? And is that chord supposed to resolve to the V chord.  I would appreciate some assistance on the harmonic progressions of this  piece.  Many thanks.