Refine the composite to remove halos. Create a simple skin retouch.
Refine layer organization and manually build and apply Frequency Separation to subtly hone the skin tones and support the painterly look.
Add more dimension and depth to the composite by creating more refined shadows and highlights with Dodge and Burn and Channel Masks. Isolate specific areas for subtle additions of contrast in the highlights. Enhance the image with Selective Color
Push the concept to completion, finalizing the painterly look