In this Photoshop tutorial I will show you easy but very interesting example of creating an undersea world that you may be very useful in the realization of your ideas related to that topic.

1. Create new document with 1024 x 768 pixels Make new layer and select the blue-green (3E6E6D) for foreground color.

2.Now reset the colors with D key from keyboard. Create a new layer. Apply filter Render > Clouds. Then open filter Sketch > Chrome and set the following settings:

Set the Blending Mode to Overlay.

3. Reset colors with D key. Create a new layer. Apply Render > Clouds. Then Filter > Stylize > Glowing Edges and set the following settings:

Set the Blending Mode to Color Dodge.

Set the Blending Mode to Linear Dodge.

Merge Layers (Ctrl + E). First Layer2 with Layer1, then Layer3 with Layer1.

4. Fix the middle of the layer, then using the Move Tool (V) get the bottom middle point, right mouse click, choose Perspective and prospect amending approximately as follows:

Now we get this:

5. Lets make the bottom. Reset colors with key D. Create a new layer. Apply filter Render > Clouds. Then filter Render > Lighting Effects and set the following settings:

Press Ctrl + U and correct color on the bottom.

6. Do the same as in section 4, but in this case moving to the upper middle, and again in the same way that Perspective Produced bottom.

7. Create a new layer. We make a rectangular shape (from end to end) using the Rectangular Merquee Tool in the center of the image and fill it with blue-green color (3E6E6D). Apply the filter Blur > Gaussian Blur with values around 8 pixels.

Press Ctrl + T and stretch a layer throughout the vertical length.

8. Reset colors with D key. Create a new layer. Apply Render > Clouds. Then open filter Stylize > Glowing Edges and set the following settings:

9. Open filter Blur> Radial Blur and apply the following settings:

10. For better results transform the layer as shown below.

That is all. Approximate you should take a scene like this: