Hello there! This is quite a fun little piece! Great job! This simple kinda A B A with an ending works out really well with your melody, and I LOVE the harmony shift at 0:44 (so satisfying and adventurous)!
I really like and appreciate, as a listener, how you build everything up in the A section! You introduce the chords, then the melody at 0:15, then some cool action with the melody at 0:28, all before the harmony shift at 0:44. I loved being able to enjoy each part of it, but then get introduced to new material shortly after! In addition, I also like the unconventional melody you pose here; it’s almost Debussy-esque (or video game-like) in my opinion.
Lastly, the ending at 1:12 is awesome! It’s a dramatic and strong descent to the last chord, and I love it’s contrast to the rest of the piece. Really shows itself as a finale (also, the arpeggios simply sound really cool!).
Great work! I really liked it. I think Omicronrg9 said it well saying it’s reminiscent of a prelude. I would love to hear more of this, but I think it also works well as it is. Awesome job!