Composite work can be fun and exciting, but sometime you may feel defeated at the end when the blending does not match up. Making a believable composite is tricky but not impossible.
Glyn Dewis guides you through quick videos on each part of the composite to blend colors, lighting, and seamless edges. In the first tutorial I came across Dewis works on matching color in a way that will work on specific layers rather than apply the color to the entire image. One trick was to create a blur layer from the color you wish to apply instead of applying it directly. The blur helps to eliminate the texture which may result in lighter or darker color matching.
In episode 62, Dewis works another way using the opacity of the cut out subject to blend the colors rather than the blur. Both ways create a more believable composite. This method will give a more hazy effect to the subject so it is meant to be worked on images that are more off in the distance. He recommends not pushing the opacity beyond 85% or you might start to see the background layer emerge. Each technique is dependent on the type of image you are working on so playing around with each method will help to get that perfect color blend to make that composite more believable.