You may not like what I'm going to say but this is genuine constructive criticism from someone who knows something about music.
Firstly, that isn't a piano, it's an electronic keyboard, and there is a massive difference there. If you are actually going to make a proper piece out of this and record it you should find an actual piano, especially for the dynamics, because on an electronic keyboard it just sounds flat.
Secondly, it's only a melody. That could be a good starting point for an actual piece but it's really too bare to be anything complete.
In about the last half the tempo is really uneven in bits and you lose where the beat is, and it sounds messy.
More finer details:
My aural skils aren't fantastic but there's a note at about 0:11 that should be raised(?) a semitone, I think. either way it's not part of a minor scale.
The higher bit at around 0:14 doesn't sound great IMO. I think you should probably keep the pitch in the same range as the rest of the melody.
The end sounds a bit sudden and rushed, I can't really figure out what's going on there because of the tempo but I think you've missed a beat or gone into irregular time or something in the 8th bar, and then you've added a 9th bar with the last note, which sounds a bit odd. It'll sound better if it's just 8 bars. (Or if it's longer, 16 bars)
I'm 14, do you expect my parents to waste space on a real piano ._.
This is just a small thing that I thought up in about five minutes, I'm still working on it. I know it sounds irregular when I went high pitched, I regret that. The end was sort of rushed, mainly because I'm a fast player, and I'm used to fast music. Most of my music is really fast paced, and I like to challenge myself by seeing how fast I can play without messing up. I guess my faster nature took over. 0:11 that's how it's supposed to sound.