Yay, it's CLEAN!! Good job on that one!
That's the first step forward, a good one, but there still plenty ahead!
You had your theme (melody starting at 0:12), it was coherent and pleasant to hear (which is great), but it doesn't have a proper introduction, one in which we can recognize the theme. The actual introduction is introducing another theme that is never fully apearing (or at least I can't recognize enough of the present one).
The passage from 4/4 to 3/4 for 2 seconds at 0:24 is really awkward.
And that's it. That's a good thing you got there!