Enhancing the background of the composite image will help draw out the hands and will both integrate them with the background and make them the “star” of the composition.
Enhancing the Background
Ctrl()+click on the Warm Hand layer to load the selection. Press Shift+F7 to invert the selection.
Click on the Background layer to make this the active layer. Press Ctrl()+J to move the selection of the background onto a new layer. Rename this layer Normal. Right-click (Macintosh: hold Ctrl and click) on the Normal layer, ...