When creating a composited shot like this, it's advisable to take your photos at the same time so you've got similarly lit shots to work with. Unfortunately, this isn't always possible because project deadlines often determine the assets you use.
In this tutorial we'll show you how to compose an image using three photographs shot in different places at different times. Rather than relying on the latest styles or plug-ins to match them up, the trick is to find images that relate in some way to each other, such as having similar tones, so they can be blended into a seamless whole. We're using birds flying across a New York skyline, a transparent bottle and a muddy rhino.