Step 5 (Adding more elements)
Now place the dark wood image above the water texture layer in the canvas. Scale its size in such way that its position is right in front of the light source (the half part of the radial gradient)
Mask some parts of the wood to have result similar to the one shown in the screenshot.
Give this wood layer an adjustment layer to alter its color. When the hue/saturation option window shows up, make sure to check Use Previous Layer To Create a Clipping Mask. This will give this hue/saturation layer a clipping mask.
Here is the value of the hue/saturation and the look of the hue/saturation layer in the layer panel. The downward arrow next to the layer is indication of a clipping mask.
Give this wood layer another new adjustment layer with a clipping mask. This time we will give it color balance. Set the value of this color balance layer as shown in the screenshot. This will give the wood image some blue tone.
Finally, go select the wood layer to be active on it and set its opacity to about 30-40%. Select the wood layer including the two adjustment layers with clipping masks above it, and hit Ctrl+G to group them in a new group or folder. I named this new folder BG
Step 6 (More woods)
We should fill the left and right part of the empty space of the scene. We will do this by simply duplicating the BG folder. Duplicate the BG folder and move the duplicate to the right. We can flip the wood horizontally to avoiding uniformity. Arrange its position to the left. We can alter the opacity of the wood layer within this duplicate folder to about 75-85% opacity.
Mask a bit unneeded part:
Duplicate again the BG folder and place the duplicate to the left to fill the empty space in that part. Mask some unneeded part.
Here is the result so far:
Step 7 (Adding a fisherman)
Open the fisherman image in photoshop. Cut out the fisherman as the result shown in the screenshot. We can use any extracting tools which are available in photoshop to do this cut out.
Place the cut out in the main document. Scale its size to fit the composition.
Mask unneeded part of it.
Finally give this fisherman layer a hue/saturation adjustment layer with a clipping mask. Duplicate (Ctrl+J) the hue/saturation layer. Set the main layer to soft light blending at 100% opacity and the duplicate to normal at 100% opacity. Select all the fisherman layers and hit Ctrl+G to group them in a folder. I named this folder fisherman.
Step 8 (Adding water ripples)
Create a new layer (Ctrl+Shift+N) below the fisherman folder. Fill (Shift+F5) this new layer with any color we want. With this new layer selected, go to layer > Smart Objects > convert to smart object. Make sure to set the foreground color to #2973fb and the background to #a0dffc. With the new smart object selected, go to filter > render > cloud to give this layer cloud filter.
Next, go to filter > other > minimum:
Give more filter: filter > blur > radial blur
Another filter: filter > distort > zig-zag
Finally, activate free transform tool. Scale its size a bit and transform its perspective:
Here is the result I created:
Hide the unneeded part of the ripples by masking them.
Step 9 (Color adjustments to the water ripples)
To match the color of the water ripples with the surrounding we should give color adjustment to this layer. We will give it two adjustment layers with clipping masks each: hue/saturation and brightness/contrast. Set the values of the both adjustment layers as shown below: