Brush Technique on Baller's Arm

Step 1: Use the quick mask to isolate the baller. (Quick mask + brush)
Step 2: Make a duplicate of the background layer (baller)
Step 3: On duplicated layer, delete the background.
Step 4: Use a type of brush on its own layer.
Step 5: Ctrl + click on the icon to get a selection of the brush layer.
Step 6: Turn off brush layer to select the baller layer.
Step 7: On baller layer, press Ctrl + C then press Ctrl + V ; a new layer is created
Step 8: Line up the brushed arm with the real arm
Step 9: Create a mask on the baller layer to isolate the arm
Step 10: Use soft brush with lower opacity to mask away his arm