Part two of our killer composition!
Open a splash stock image and use the Magic Wand tool to select the splash. Copy the selected pixels to a new layer. Fill the background layer with black. In the Channels panel Cmd/Ctrl+click the RGB channel to select the luminosity of the image. Then use this selection as a layer mask on the water splash. Position and repeat with the other splash pictures.
For each splash layer, set the blend mode to Luminosity and add a Colour Overlay layer style using a teal colour set to Overlay. Copy and transform the splashes until the effect surrounds the shark. Then group all these splash layers.
Add a mask to the group and use it to hide splashes behind the shark’s fin. Then create a merged copy of the splash group by holding down Opt/Alt and going to Layer>Merge Group. Convert the splash group into a Smart Object.
On the splash’s Smart Object go to Filter>Blur Gallery>Path Blur. Create a short path matching the shark’s motion. Set the Speed to 13% and End Point Speeds to 145px. After applying the blur, use the Smart Filter’s mask to apply the effect to the splashes only at the base of the shark.
Target the merged Splash layer, set the blending mode to Vivid Light and reduce the Opacity to 52%. Then go to Filter>Blur>Radial Blur. Set the Amount to 26, the Method to Zoom and adjust the blur centre to match the location of the splash epicentre.
Use a group mask on the splash group to remove the blur effect from areas that should remain sharp. Open a water drops stock image and then place in the picture, before setting the layer to Soft Light.
Extra fish images can really enhance the final picture. Position using the techniques we used earlier, and to make them more dynamic, add motion blurs and layering in some additional splashes. Then use a Drop Shadow layer style with the Size increased to 30px.
Create a merged layer of all the background elements and use the Camera Raw filter to add a Post Crop Vignette with an Amount set to -60. Then use an Iris Blur from the Blur Gallery set to a 6px blur to add a focal blur to the outside edges.