I worked this up today from a photo I shot on a vacation a few years ago. I initially wanted the hard edge on the clouds but have since changed my mind. I’m not sure that’s it though. The shape is odd and the centre is a problem in how much it pulls the eye, Lifting off pigment could fix it but more than likely would make it worse. Perhaps carrying the dark cloud farther to the right would be a better solution for unifying the right and left of the composition. Maybe a bit of both.