I also played with the colors in photoshop. I wanted something softer that would work with the sky colors. I used the hue/saturation slide under Enhance to get a more pastel look - bottom of post.
Looking through my photo files I found a number of possibilites for "aged wood"
which I cropped after making duplicates to give me lots of possibilites. This might be a little strong. I'll have to print it on fabric and play with it on the design wall.
I also liked this photo with the "sunbeam" on the wood.
This next one is a good possibility - a little more subtle.
By playing with the color variation under enhance, color adjust and variation, I removed some of the blue. I like this; don't know if it will work but will have to get flower fabric dyed up first to see.
And then to make them into a "picture package" to cut apart and use as patterns.
This is the fun part, almost like playing with paper dolls.
I have flowers, wood and skies to make my paper collage.
The quilt is to be 32" x 42" so as luck would have it, a piece of graph paper is 32 squares by 42 squares. I didn't have to tape anything together - each square is 1". You can see the different colors on the flowers from the original. I think they work better with the sky. I wanted it to be a semi-abstract look with sky intermingled with an aging wood trellis and flowers winding up the wood.