Now grab Burn Tool from the tool panel or you can press Shift+O again and again until it comes. Burn tool darkens the areas where we applies it. Now we need to apply our Burn tool to the regions which are having shadow’s. You can take below image as reference.
In the option panel change the range to Shadow and decrease the range all the way to 20%.
Now paint over the darker areas. Your image should look like this.
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