This actually has a lot of potential for a simple logo. Like Kiabin said move it to the center of the glow so it looks like it's radiating. Also, if that square thing isn't made by you, scap it, as copyright will get you eventually if you go anywhere with this. But I do like the placement of it.
For improvements, lighten up the text, it blends with the background too much. Try doing one with a transparent background.