Step 1: Downloaded my own photo DISCO2542 which was taken at Wayanad, Kerala
step 2 of 3
Step 2: Downloaded another photo of mine 100_1164 which was taken at Andaman Islands. Removed the blue sky with Magic Wand Tool and with crop Tool removed the bottom portion. Dragged and placed on the image at Step 1
step 3 of 3
Step 3: From the photo 100_0975 which was also taken at Andaman Island by me, the bottom portion selected, copied and pasted on the image at step 2.