Inspired by kynlo doing a paintover, I hope you don’t mind me doing that also.
Lighter smoother hair makes for a more uniform look, contrasting with the different and detailed rendering of the hand. (Different textures generally give good contrast.) Stronger contrasts added on the hand and wrist. Blur on the little/ring finger knuckles; I realised while doing that that blurring only the edges of the hand wouldn’t have worked! Blended the face more, to contrast with hand detail also. Adding the blue sky, as an example of how that again provides contrast; previously any hand highlights were getting lost against the white.
Often things in the foreground have more detail, unless softening (as kynlo has) or slightly blurring, to make the face stand out more (‘camera effect’ where something blurs if very near to the foreground), in which case more detail on the face would help that method a lot. Another rule of thumb is that often things get lighter the more far away they are, and warmer foreground colours become cooler.
Toyed with if it was possible to add any shadows falling on the face from the hand, but not sure if the angle of light would cast any shadows … always makes things stand out a lot if can put in a cast shadow or two.
I couldn’t do every detail, e.g. working over the rest of the orange linework, but it’s such a good composition and was a lot of fun. I hope any suggestions are helpful. Thanks for posting it!