Desaturate. Maximize Contrast multiple times. Select black elements with Magic Wand
step 2 of 2
Stretch result of previous step wide. Bring in other elements recognizing that precision of edges is not critical when the end result will be a silhouette. Use the elements' outlines to form silhouettes and then create a ripply shadow on the water from a horizontally flipped and Distorted copy that is then Liquified.