1. Create New Document 200x200px with white background.

2. Set Foreground Color to #007A29, Background Color to #000000 and apply Filter>Render>Clouds:



3. Switch Background Color to Foregroung and go to Filter>Texture>Stained Glass:







4. Going to Filter>Artistic>Plastic Warp:



5. Apply Image>Adjustments>Hue/Saturation:



My Final Result:



Good luck, and be sure to check out our other Photoshop Tutorials!