After applying several dark layers a painting surface feels heavy. How can lightness be restored while retaining colour depth?

Correct answer: Lift colour selectively and rebalance with light transparent layers

The governing concept is tonal balance: depth should come from controlled layers, not from making every area equally dark. Selectively lift or soften paint in the heaviest passages, then add thin, transparent lighter layers where needed. This preserves some underlying colour while reopening highlights and visual breathing space. Covering everything with white can flatten the colour, another dark layer increases heaviness, and scratching can damage the surface.