Very nice. I'd imagine this played with a lot of rubato! Measures 15 & 20 may be a bit tricky since the notes are crossing each other and at least two of the notes (B's) are played with both hands at the same time. If you meant that I'd add a parenthesis surrounding the right hand note. Perhaps you can change from octaves to sixths like one of the PP suggested?
In measures 12 and 13, consider making the first beat of the left hand two eighth notes (C# & E) instead of a quarter note. When I played through it the eighth notes leading to the the sudden stopped motion of the half notes seemed to fit better than just a quarter note.