This is a great start! Going forward, I would suggest you think about ways to use the left hand more in your piano compositions. In this piece, it never has the starring role. If this was an orchestra piece, those bass notes would be played by a few sad orchestra members, who would never have a chance to lead the music. Even though this is piano, and technically, all notes sound the same, if you think of each musical line as being played by a different person, it's easier to give each part more character. Let the right hand respond to what the left hand has just said, and elaborate on its statement, and vice versa. There's nothing wrong with what you've written, but it could have more impact if the musical texture didn't stay the same all the way through. Thinking about ways to vary your rhythms, or the meter of your piece is another way to attack the same problem, but from a different angle. It can give you the kind of contrasts that help your work feel more like a conversation, or a narrative. For a short piece like this, it's not as important, but it's a good skill to learn going forward as you start composing longer works. It can help propel the music forward in a structured way.
That said, this had some good harmonic changes that kept the piece moving and you transitioned between them smoothly, which means you're probably further along than you think! Nice job and welcome!
Oh, and it's easier for people to give you specific feedback if you post a pdf of a score along with the audio file. The we can cite measure numbers and notes more easily. (: