From top to bottom:
1: original photo taken on iPhone 4 after a thunderstorm
2: Photoshop app with applied increased contrast, saturation and exposure / also used 'vibrant' filter then saved for...
3: Photoshop app uploaded image 2 and vignette blur and saved for...
4: Photoshop app uploaded image 3 and added 'warm vintage' filter and saved for...
5: Photoshop app uploaded image 4 and added 'rainbow' filter