Here is a suggestion that can help you to determine your next steps for this painting:

Try putting it up on the wall and doing a 15-20 minute sketch of your painting.

Once you have completed your sketch drawing, place it next to your original painting and look at the differences between the drawing and the painting. By seeing another version of your work, it can help you decide what you add or what you subtract from your painting. It might even help you determine that your painting is already complete, just as it is.

Hope this advice helps.