How can I affect color of a water droplet shot?

Question

Experimenting with water droplets today. Pretty fun! I'd like to ask how can I improve upon it. First of all a picture of the setup:

Water is contained within a plastic bag that is taped to a tall-ish black lamp. Water drops into a big bowl that is covered with black plastic because the bowl itself is white. Flash is pointed towards a styrofoam background that is all white. Kinda ghetto home setup but it mostly works :) Now a sample of the results, SOOC:

Although the results actually turned out quite pleasing, my first expectation was for the color to follow the background, that is I was expecting it to be all or mostly white. However this is not the case, as there is some black there. How do I fix this if I want the color of the shot to be mostly white?

Thank you!

Answer

If you want the shot to be white, don't put a black bin bag in the bowl. If you want to add a touch of colour, try putting some coloured gels (or any coloured transparent plastic) over the flash. I'd try it without the diffuser as well.

Check more discussion of this question.