I've been playing around using textures to add a portrait backdrop feel to my photos. I just wanted to give you a quick glimpse however of what a texture can do to liven up a photo.
This is the image SOOTC (straight out of the camera). A bright day and a high shutter speed do not make for deep colors. One does what one can with an active 6 year old however.
add a layer of a bright, multicolored texture found at Deviantart.com
blend the layer. I used multiply for this one I believe. The color in the texture layer add depth and warmth to the greenery in the photo.