I like this picture! The colors are bright and fun, and the picture itself is chaotic in a way that makes me think of an arcade carpet or a deliberate paint splatter design. However. it could be improved in a couple of ways: firstly, you could experiment with giving those lines some deliberate direction, and varying the shapes and width a bit. Secondly, you used many near-indistinguishable shades of black without any real reason. You really only needed one shade of black to achieve this same look.