Be careful with rain, especially when it's not animated. It obscures so much of the image. That original had beautiful detail to begin with, don't waste it. Hue changes are a great tool for designers, but always remember, any edits to the image as a whole distorts it. Sharpen the image during editing, especially after sizing. Rain is hard to achieve on such a small platform, as the brain wants to see the trail, the splashes when it contacts items.
ok so for doing rain i would need something thats not as dense and more spread out