So I’m guessing you’re going for a color field painting, like Mark Rothko or Piet Mondrian style yeah? If so, great job! You’ve captured this style very well. In my personal opinion, the ‘weight’ of the top half of the painting is a bit heavy or busy versus the bottom half. I would suggest turning the painting sideways or upside down and seeing if you like it.

So maybe like this:

Or like this: