This tutorial mainly uses the high contrast retention, the hue saturation, and the overlay in the layer blending mode in the filter, the process is simple, is suitable for the PS beginner to read.
The first step is to press Ctrl+j to copy the background layer, select the filter---Other---High contrast retention, mainly to improve the sharpness of the monkey head and branches. Layer blending mode is set to overlay.
The second step, in the upper right of the software interface to add adjustments to find the natural saturation, the adjustment of the nature of the natural saturation of +40, saturation of +10
The third step is to press Ctrl+shift+alt+e stamped layer (which synthesizes all layers of image to a new layer), set opacity to 30%, and layer blending mode to overlay.