I've written a lot of pieces, but i never copy otehers, but i use styles of them or myself.
your piece is nice but i think it's too much like that heroique polonaise.
Here's my work, i'll list it for you to see and i'll place a short disscussion after the name
Op.1(Children Piano pieces)
Op.1 No.1 : Blossoms in D(binary form), 2.35
Op.1 No.2 : Doggie on the holiday in C (Binary form), 5.24
Op.1 No.3 : Don't touch me in C#minor(Rondo form), 4.41
Op.1 No.4 : Rainforest in G#mionor(Minuet style), 7.54
Op.2(Niagara Falls Symphonie)
Mvt.1 : in C minor(Allegro non troppo), 18.32
Mvt.2 : in Ab minor(Andante), 7.54
Mvt.3 : in G(Allegro con brio), 15.20
Mvt.4 : in C minor(Presto), 17.17
Op.3(Canon)
Canon in Ab minor, 12.06
Op.4(Violin Concerto)
Mvt.1 : in F minor, 8.04
Mvt.2 : in D, 4.25
Mvt.3 : in F minor, 7.55
Op.5(Piano Sonata)
Mvt.1 : in Cb major(Allegro non troppo), 8.56
Mvt.2 : in Ab minor(Adagio), 6.28
Mvt.3 : in Bb minor(Allegretto), 5.30
Mvt.4 : in Cb major(Prestissimo),8.43
Op.6(Piano Sonata)
Mvt.1 : in C minor(Allegro assai), 19.54
Mvt.2 : in F major(Agagio sustenuto), 10.22
Mvt.3 : in C major(Allegro), 15.54
Mvt.4 : in C minor(Presto), 18.31
Op.7(Piano Concerto)
Mvt.1 : in C# major(allegro con brio), 15.24
Mvt.2 : in B major(Largo), 12.11
Mvt.3 : in C# major(allegro assai), 17.55
and now, i'm writing Op.8(piano sonata in C minor) but i didn't copy any music from the others, i like your piece but i'd like you to try your or other composers style, not piece.
pls note that your piece don't sounds like existed piece