In this tutorial we will create a cool underwater scene with a big fish. We will use some basic selection tools and adjustments to achieve a great result.

Preview of Final Results

Tutorial Resources

• Sky (Alternative)
• Moon
• Underwater
• Fish
• Plants Pack
• Coral
• Diver
• Island Pack
• Water Caustics (Alternative)
• Light Brushes
• Bubbles Brushes

Step 1

Create a new document 2150x4187px.

Step 2

Open file “Sky” and select all (Ctrl + A). Copy all (Ctrl + C) and paste into our document (Ctrl + V). Press Ctrl + T to Free Transform and position the document like shown below.

Step 3

Open file “Sky” and using the Elliptical Marquee Tool make a selection of the moon.

Step 4

Copy and paste it into our document. Press Ctrl + T to Free Transform the moon like in the image below. Change the layer blend mode to Overlay.

Step 5

Double-click the moon layer to enter Advanced Blending options and add the following styles to make the moon look more realistic.

Step 6

Duplicate the moon layer by pressing Ctrl + J and Ctrl-click on the layer to make a selection of the moon. Fill this selection with black (with black as foreground color press Alt + Backspace) and apply a 250px Gaussian Blur. Change the layer blend mode to Multiply and lower the Opacity to 23%.

Step 7

Add a Curves Adjustment layer and change the Blue and Red channel as shown below. This step will add a nice blue hue to the image.

Step 8

In this step we will create the rainbow. Create a new layer and using the Rectangular Marquee Tool create a selection like shown below.

Step 9

Select the Gradient Tool (G) and in the upper toolbar double-click to open the gradient editor.

Step 10

To replicate a rainbow colors add the following colors in the gradient editor: red, orange, yellow, green, blue, indigo, magenta. When you are finished press OK.

Step 11

Hold Shift and drag with the Gradient Tool in the selection you created at step 8. Press Ctrl + D to deselect and proceed to next step.

Step 12

Use the Eraser tool to erase the margins of the gradient and apply a 20px Gaussian Blur.

Step 13

With the rainbow layer selected press Ctrl + T to enter Free Transform. Right-click on the rainbow and choose Warp. From the upper drop down menu select Arch.

Step 14

You can see the results of our transformation below. Now it starts to look like a real rainbow.

Step 15

Change the rainbow layer blending mode to Color and lower the Opacity to 37%. Place the rainbow closer to the moon like shown below.

Step 16

Open file “Underwater” and select all (Ctrl + A). Copy then paste into our document. Use Free transform to resize and position the layer like shown below.

Step 17

Paste the “Underwater” file again by pressing Ctrl + V and resize it like shown below.

Step 18

Add a layer mask (Layer > Layer Mask >Hide All) and using a round white soft brush at 30% Opacity paint in the layer mask to reveal some of the center area of this layer.

Step 19

Add a Curves Adjustment layer and drag the curve downwards to darken the scene. But because we want to apply this effect selectively we will mask some of the darkening effect in the next step.

Step 20

Press D to set default colors and select the gradient tool (G). Click on the layer mask than hold the Shift key and drag from bottom part towards the upper part. This will darken the bottom of the sea and will make the underwater scene look more realistic because if you look at underwater scenes you will notice that the part near the bottom of the sea it is darker.