#1st Practice Own Composition 32 Bars

In this video i practice my own composition 32 bars, my song title is "Help Us !".
I think i play it well enough in my first practice of this song, however there is a little mistake in
applying the correct beat. For example, sometime the beat must be 2 seconds, but i play it only 1 second. So, I think i need to practice in that part.