we took this shot yesterday. It was quite rainy so we did some indoor photography.
We dripped some water into a bowl and kept it with a long exposure (0.8s). We filled in a flash manually with a blue diffusor mounted so that we got the effect we desired. The aperture was fully closed to make the long exposure time possible.
In the end we edited the shot slightly by blurring out the background and corrected the colors a bit.