Equalizer Banner Design - Steemit Graphic Design Chronicle #11

Hey guys,

I've made a new banner in the style of an equalizer. That little ninja mark is my new logo integrated in the design.
I must admit this one in my view is not the best I've done, and to me it looks a little too childish, for the lack of a better word.

What do you guys think? What could have I done better? What would you add/remove from it?

Thanks for checking out my post, this post is intended to enrich the #graphicdesign tag on Steemit. Help spread graphic design on Steemit! :)