Fine Composition Work.
First off, it's too long. At least three minutes of this could have been cut out without it detracting too much from the overall feel of the piece.
You demonstrate a natural sensibility of transitioning between phrases, particularly when you use diminished chords to segue from the slower sections into the faster ones. More challenging chords out of you!
There seems to be a middle section when you're constantly going up and down a minor scale in the left hand. Try to avoid this unless you're doing something interesting rhythmically, otherwise it just sounds like an etude.
There is also a crippling lack of dynamics. Extremes between loud and quiet are a necessity in every piece of music, especially in the pseudo-baroque style you've got going here.
Other than those fairly minor criticisms, you've shown great potential in areas of thematic development, chordal accompaniment and even the holy grail of composing, counterpoint. Good on you sir.