In Australia it is Spring, and Halloween is not as widely celebrated as in other countries, so I thought I would take the autumn pumpkin WWYD theme and turn it into a Spring inspired explosion!
Kimberley's original photo and challenge explanation are at http://365project.org/discuss/themes-competitions/8759/wwyd-31
@samdan - Thanks Lesley. I photographed the perume bottle sitting on an A3 sheet of white cardboard clipped up so there was no 'horizon'. The pumpkin pic I opened in PaintshopPro and 'selected' the pumkin by drawing around it with the mouse, 'inverted'the selection, and then could hit 'delete' to remove the black background. If you then save as a JPG, I am pretty sure you automatically get a white background. You could do that with any picture you want a plain white background with. GIMP or http://pixlr.com/ editors are free & let you achieve the same thing, as well as the next steps which was to 'copy & paste' the circle shape into the other picture as a new 'layer' and blend the two together. The other effects were all added on separate layers - paint blobs, & grunge 'marks' in different colours. Using layers took me a long while the get the hang of, but they open up a whole new world of processing. There are plenty of good tutorial sites (I like http://www.michelespaintshop.com/mp_tutorials_index.php because I use PSP, but when you get used to whatever program you use, most photoshop ones also apply to PSP etc. (learning layers is quite hard, but you can easily 'draw' around an object to select it, and then 'invert selection' & remove the background without knowing layers). Hope this helps.