Adding colour

Adding colour to an image is a good way of adding intensity to an image, you could add colour to the background (sky,landscape etc) or features on a person in a photograph it could be eyes, the hair or clothing, these can all enhance the feature of the picture.

To  apply colour to your image, you must first duplicate your layer, this way if you go wrong you can delete the layer without ruining your original image. To do that just go on layer, then new, this will bring up a new layer for you to edit your picture with.

When adding colour to the image, keep in mind, that it has to look right in the image, it can not just be random, or else it would completely ruin the image.
Looking at this image, i have put colour back into Alex's eye, it gives it quite a pastille effect.

The final image is quite i think, the reason being that the eye looks peculiar but in a good way, it makes the image quite intense.