Really beautiful! As an alternative comment on the resolution I find with paintings like this the diffused light is so lovely and soft that if you change the resolution the light can become harsh. I'm just saying that to me the resolution on this, with the lovely diffused light that you have, is fine.
I hope you can find what is doing a disservice to your resolution and evolve this amazing composition if that is what you want to do. I would love to see evolution here.