For this assignment I used a photo taken at the Olympic Country Club in San Francisco. The picture was taken around dusk time on my iPhone camera, which allowed for a nice combination of colors at the horizon as the sun was beginning to set.
First, I created a new adjustment layer for levels, to adjust the white and black balance, making the image a little darker. With another adjustment layer I changed the color of the image by modifying the curvature. Lastly I tweaked the "pop" through the channel mixer. The image naturally contained a lot of green from the grass of the golf field so the green output channel was something that did not need to be heavily modified. However because of the natural warm colors from the sunset, there was potential to increase the output channel for red. I accordingly set the red to give the sunset more color without going overboard. This action lead to the brown of the tree to pop out a little, giving it more life than its natural brown state to a more reddish brown.