How to Create a Magma Mountain

Step 1: The Image

You can look for a waterfall image somewhere or save the image below

First we should enhance the colors of this image a bit

Press Ctrl-J to duplicate this image then go to Filter>Blur>Gaussian Blur and set a small value of 0.5 pixels and change the blending mode of this layer to Overlay. Now it looks more impressive!

Step 2: Add the Moon to the sky

Download this image or get another elsewhere

Paste it on your document and change its blending mode to Screen and move it to the top of the mountain. Resize it if necessary

Step 3: Use the Eraser Tool with a soft brush to erase the bottom of the moon to make a "behind" effect

Step 4: Adjust the moon's color by going to Image>Adjustments>Hue/Saturation (Ctrl-U) and use these settings:

Our moon will turn out blue and blend better with the sky

Step 5: Turn this normal waterfall into a deadly one

Look for an image with some fire on it like this one:

Put it on your document and change its blending mode to Overlay to apply its colors to the mountain

Step 6: Add a layer mask to this layer by going to Layer>Layer Mask>Reveal All. Press D to change your foreground color to black and use a soft brush to fill the sky to hide the effect of this layer on it, make it brighter

Step 7: The last step is to turn water into magma. I found an image whose sky looks like magma

Select a small part of it like the image above and paste it on your document. Use the Transformation Tool Edit>Transform>Rotate to rotate it 90^o

Change its blending mode to Overlay

Step 8: Add a layer mask like we did as step 6 and fill mountain and sky areas with black to hide the effect of this layer on them. Now we have a great result!

I added some "black birds" to make it more impressive

You can try adding some more effects on it. Hope you enjoy this tutorial!