Original image

step 1 of 5

step 2 of 5

step 3 of 5

step 4 of 5
Reselect the shape you made and move it over to the left a bit, then press delete. You will be left with the remaining boat on the right.
Use the burn tool to let it appear it's behind the boat.

step 5 of 5
I used gradient fill over the image
yellow for sun
blue for water
Pretty simple stuff.

Final result

