An advertisement campaign from Zurich. This is a good example of post production merging two photographs into one

Here, I have tried to replicate this style of photograph using photoshop by layering two images into one. One black and white and one colour, placing them on top of each other in layers and then using the eraser tool to remove part of the top layer using a special splat tool to create the effect that someone has just spilt ink or water colour paint onto the photograph.