Look for patterns and colour
I was walking round a swimming pool on holiday and saw lots of lovely patterns and colours in the water
so I composed the picture and clicked the shutter.
I took this with my Canon 5d mark II with an EF 50mm f 1.4 USM lens. 1/30th s at f 5.6
I shot this image as a reflection, then flipped it in photoshop. I used my Canon 5d mk II - with my Canon 85 mm f/1.8 USM set at 1/800 s at f/16.
You could get the same effect with any camera including your smart phone.