
Those were so funny comments.
Nice Ghost Ship I like the night sense , I can see something in the ship but didn't get what it could be

.
And about your questions, reflection on water?
-just select the part you want to reflect it using rectangle select,
-then on the menu bar click
Copy and
Paste (do all that on same layer),
-then switch to
Move Selection tool and use the upper knob to squash the selection downward, continue and pass over the lower knob to revers (mirrored) the selection and stretch it to the length you need.
-then use
Dents with higher stretch option to distort the selection.
-and lower the transparency if it needs or use the transparent Gradient as AFG explained.
If you don't understand it tell me to make a video for this method.