The phone I use is Xiaomi Mi 8
First, I turned on the original camera, and then turned on the constant light of the flash (because it is easier to compose the picture).
Regarding the filter, I choose Filter-Vivid
Then it’s time to take pictures.
You can turn on the tap when you take a photo. Please remember that the water must be scattered, not to form a neat column of water.
You can use vsco composition for cropping later
mengjiao 
lay 
Rupesh 